Moparts
Which Engine 318 or 400?
Posted By: OrangeProwler
Which Engine 318 or 400? - 01/25/11 06:02 PM
Just wondering if you had the choices between these two setups for power and possible fuel mileage.
#1 Numbers 68 318 with Enginequest heads, KB167 pistons, Performer Intake; 800 Thermoquad, headers, Lunati Voodoo 60401 and .039 head gaskets matched to a low gear 904, 2k stall and 2.76 gears.
#2 74 400 block with stock heads KB240s, headers, performer intake, 800 TQ, and Lunati 60300 or 60301 cam; and not sure on the head gaskets. Stock 727 wity 2k stall and 2.76 gears.
On the street which engine would be better and get better fuel economy? I know that sounds like an oxymoron but, with gas going to 5 bucks a gallon potentially in the future. I have to ask.
Posted By: moparsquid
Re: Which Engine 318 or 400? - 01/25/11 06:35 PM
What type car?
Posted By: patrick
Re: Which Engine 318 or 400? - 01/25/11 07:20 PM
Quote:
Just wondering if you had the choices between these two setups for power and possible fuel mileage.
#1 Numbers 68 318 with Enginequest heads, KB167 pistons, Performer Intake; 800 Thermoquad, headers, Lunati Voodoo 60401 and .039 head gaskets matched to a low gear 904, 2k stall and 2.76 gears.
#2 74 400 block with stock heads KB240s, headers, performer intake, 800 TQ, and Lunati 60300 or 60301 cam; and not sure on the head gaskets. Stock 727 wity 2k stall and 2.76 gears.
On the street which engine would be better and get better fuel economy? I know that sounds like an oxymoron but, with gas going to 5 bucks a gallon potentially in the future. I have to ask.
#1 I'd wager at ~320-330 hp, 350-370tq
#2 I'd wager at ~340-370 hp, 425-460tq
highway cruising I could see the 'teen getting significantly better mileage, probably upper teens vs. lower 20's...in town, probably little difference
for the price difference in the pistons, you could probably pick up a rebuildable 360 shortblock and KB107's, I'd expect probably 330-350hp and 400-430tq out of that, mileage probably in between the other two....
Posted By: Mr.Yuck
Re: Which Engine 318 or 400? - 01/25/11 07:26 PM
why bother...get a honda if you are concerned about gas prices.
I'd say if you have a B or E body use the 400 if you have an A body use the 318. I would however not use 2.76 gears on either. lower gear doesn't always mean better mpg. Plus you'd have to drive it a TON on the highway to get any benefit. $5 a gallon is nothing compaired to the cost of building and maintaining a muscle car.
Posted By: MoparMarq
Re: Which Engine 318 or 400? - 01/25/11 08:13 PM
Quote:
why bother...get a honda if you are concerned about gas prices.
I'd say if you have a B or E body use the 400 if you have an A body use the 318. I would however not use 2.76 gears on either. lower gear doesn't always mean better mpg. Plus you'd have to drive it a TON on the highway to get any benefit. $5 a gallon is nothing compaired to the cost of building and maintaining a muscle car.
Agreed. As an aside, back in the day, my '72 RR had the factory 400/727 with 3.55s in the rear. Needless to say, fuel economy not too good. Swapped in 3.23s to improve it a bit. It did improve it some. Went to 2.76s later on, zero difference. Same as the 3.23s. Of course, the top end was a lot better, but it was a pig off the line. Much depends on power, weight, torque, how it's driven, etc.
If fuel economy is the goal, I'd go with the 318. The weight difference between the two will help with economy numbers, as will engine power.
The goals aren't mutually exclusive; but how much do you want to spend anyway?
Posted By: patrick
Re: Which Engine 318 or 400? - 01/25/11 10:57 PM
Quote:
why bother...get a honda if you are concerned about gas prices.
I'd say if you have a B or E body use the 400 if you have an A body use the 318. I would however not use 2.76 gears on either. lower gear doesn't always mean better mpg. Plus you'd have to drive it a TON on the highway to get any benefit. $5 a gallon is nothing compaired to the cost of building and maintaining a muscle car.
some of us enjoy driving our cars on a regular basis...I built a 318 along the same recipie as him, except I'm using a small hydraulic roller, eddie RPM air gap, and OEM magnum castings. it's enough motor to push my 3900 lb pig to mid 14's using 27" tires, 3.55's and an A500, and is very entertaining to drive, while yielding a solid 17+ mpg in daily (mixed) driving....
Posted By: forphorty
Re: Which Engine 318 or 400? - 01/26/11 01:31 AM
I have a 318 in my duster but all my B bodies have had big blocks. I would never consider a small block in a B body myself unless it was already in there. If you run a small block , all the cheap headers hang low on the drivers side and have the center link pass through them. The big block headers do not. With a big block, intake swaps are much easier and you dont have to drain any water. Distributor is up front where it should be. Windage trays are cheaper and don't require extra hardware. If you have to change a broken water pump on the side of the road, you will appreciate that it only requires removing four bolts for the fan and pulley and four bolts for the pump and its off, whereas with the sb you will be fooling with the lower hose and PS brackets. Yep, i prefer big blocks. Having said that, my Duster will probably end up with a 360 magnum. As far as mileage goes i don't know what's good or bad. My 73 gets about 15- 17 mpg on the highway. Has a .030 400 with a 268 XE comp, 750 DP, MP 175k converter and 2.76s. My 440 powered Satellite gets much worse but has more cam, more converter, etc.
Posted By: Mr.Yuck
Re: Which Engine 318 or 400? - 01/26/11 03:03 AM
Quote:
Quote:
why bother...get a honda if you are concerned about gas prices.
I'd say if you have a B or E body use the 400 if you have an A body use the 318. I would however not use 2.76 gears on either. lower gear doesn't always mean better mpg. Plus you'd have to drive it a TON on the highway to get any benefit. $5 a gallon is nothing compaired to the cost of building and maintaining a muscle car.
some of us enjoy driving our cars on a regular basis...I built a 318 along the same recipie as him, except I'm using a small hydraulic roller, eddie RPM air gap, and OEM magnum castings. it's enough motor to push my 3900 lb pig to mid 14's using 27" tires, 3.55's and an A500, and is very entertaining to drive, while yielding a solid 17+ mpg in daily (mixed) driving....
what's that got to do with it? I enjoy driving mine too I wouldn't have built it if not. I was running 12.0's in a 67 coronet w/ a 440 and getting 12-13 with 3.91's. My 72 340 swinger ran 13.86's with a mild 340 and 3.55's and netted 17+mpg's. Car is not going to be very impressive at all w/ 2.76 gears and they might hurt his milage. If he was building a Bonneville car the 2.76's would be fine. I'd wager a cold 12 pack the difference in mpg's between 2.76's and 3.55's would be less than 2mpg (compined driving) Put the performance would be way up.
I guess my main point is people dump all kinds of dumb $$$ into a ride and worry about mpgs and how much it costs to fill the tank. Gas won't be $5/gallon for a long while. I doubt 93 will go over $4 for too long. Build it to run it's best. If you build a performace engine, back it up. If you want a pretty car you can drive everyday build a stockish roller 360 and get a set of 3.23's.
Posted By: Magnum
Re: Which Engine 318 or 400? - 01/26/11 04:44 PM
This thread seems to be losing a bit of focus. It also fails to mention the goals and what car it's intended for.
All else equal, 318 will surpass a 400 in mileage.
Also, I'm not buying the deeper gear might get better mileage. May for the 5 to 10 seconds it takes to accelerate from a light but once you are at a constant speed. Lower rpm equals better mileage.
Posted By: Dean_Kuzluzski
Re: Which Engine 318 or 400? - 01/26/11 04:53 PM
Quote:
All else equal, 318 will surpass a 400 in mileage.
Also, I'm not buying the deeper gear might get better mileage. May for the 5 to 10 seconds it takes to accelerate from a light but once you are at a constant speed. Lower rpm equals better mileage.
Agreed. Any time you can run down the road with the engine at highest vacuum, closest to idle, you'll get best mileage.
Driving like there's an egg, not hardboiled, between your foot and the gas pedal will gain best mpg. The trouble is, with mild gearing that means letting the vehicle attain cruising speed in a longer manner at it's own rate. In more populated areas it isn't practical. Rural it works. My 318, 904 lock-up, 2.20:1 geared 80 Cordoba got a VERY honest 20 mpg with every tankful for 2 full summers. I drive 24 miles each way to work with only 2 traffic lights on the way there.
Posted By: DPelletier
Re: Which Engine 318 or 400? - 01/26/11 05:46 PM
Quote:
Quote:
Quote:
why bother...get a honda if you are concerned about gas prices.
I'd say if you have a B or E body use the 400 if you have an A body use the 318. I would however not use 2.76 gears on either. lower gear doesn't always mean better mpg. Plus you'd have to drive it a TON on the highway to get any benefit. $5 a gallon is nothing compaired to the cost of building and maintaining a muscle car.
some of us enjoy driving our cars on a regular basis...I built a 318 along the same recipie as him, except I'm using a small hydraulic roller, eddie RPM air gap, and OEM magnum castings. it's enough motor to push my 3900 lb pig to mid 14's using 27" tires, 3.55's and an A500, and is very entertaining to drive, while yielding a solid 17+ mpg in daily (mixed) driving....
what's that got to do with it? I enjoy driving mine too I wouldn't have built it if not. I was running 12.0's in a 67 coronet w/ a 440 and getting 12-13 with 3.91's. My 72 340 swinger ran 13.86's with a mild 340 and 3.55's and netted 17+mpg's. Car is not going to be very impressive at all w/ 2.76 gears and they might hurt his milage. If he was building a Bonneville car the 2.76's would be fine. I'd wager a cold 12 pack the difference in mpg's between 2.76's and 3.55's would be less than 2mpg (compined driving) Put the performance would be way up.
I guess my main point is people dump all kinds of dumb $$$ into a ride and worry about mpgs and how much it costs to fill the tank. Gas won't be $5/gallon for a long while. I doubt 93 will go over $4 for too long. Build it to run it's best. If you build a performace engine, back it up. If you want a pretty car you can drive everyday build a stockish roller 360 and get a set of 3.23's.
I tend to agree. It may not really answer the OP's question (which is impossible without knowing how much weight HE assigns to power vs. economy)but after buying my car, restoring it, building a garage to put it in, etc. etc. Fuel economy is my last concern (obvious with my 440-6 and 4.10's, I suppose).
I'm not knocking anyone trying to maximize thier economy in order to spend more time driving my car, but (for me) If it ever gets too expensive to drive my car, I'll drive it less before I'll sacrifice most of the performance.
Dave
Posted By: DPelletier
Re: Which Engine 318 or 400? - 01/26/11 05:49 PM
Quote:
This thread seems to be losing a bit of focus. It also fails to mention the goals and what car it's intended for.
All else equal, 318 will surpass a 400 in mileage.
Also, I'm not buying the deeper gear might get better mileage. May for the 5 to 10 seconds it takes to accelerate from a light but once you are at a constant speed. Lower rpm equals better mileage.
You have a point, but the truth is that it certainly IS possible to get as good or better mileage AROUND TOWN with a lower gearset. The increased torque multiplication for acceleration from a stop can overshadow the steady-state rpm based fuel consumption. A lower rpm equals better mileage on the highway.....but around town that doesn't necessarily hold true.
Dave
Posted By: 540challenger
Re: Which Engine 318 or 400? - 01/26/11 05:58 PM
Quote:
Quote:
This thread seems to be losing a bit of focus. It also fails to mention the goals and what car it's intended for.
All else equal, 318 will surpass a 400 in mileage.
Also, I'm not buying the deeper gear might get better mileage. May for the 5 to 10 seconds it takes to accelerate from a light but once you are at a constant speed. Lower rpm equals better mileage.
You have a point, but the truth is that it certainly IS possible to get as good or better mileage AROUND TOWN with a lower gearset. The increased torque multiplication for acceleration from a stop can overshadow the steady-state rpm based fuel consumption. A lower rpm equals better mileage on the highway.....but around town that doesn't necessarily hold true.
Dave
True but i think the OP stated he had a 904 with a low gear set in first gear that should help out and IMO it would be a better way to go for what the OP wants to do.
Posted By: DPelletier
Re: Which Engine 318 or 400? - 01/26/11 06:49 PM
Quote:
Quote:
Quote:
This thread seems to be losing a bit of focus. It also fails to mention the goals and what car it's intended for.
All else equal, 318 will surpass a 400 in mileage.
Also, I'm not buying the deeper gear might get better mileage. May for the 5 to 10 seconds it takes to accelerate from a light but once you are at a constant speed. Lower rpm equals better mileage.
You have a point, but the truth is that it certainly IS possible to get as good or better mileage AROUND TOWN with a lower gearset. The increased torque multiplication for acceleration from a stop can overshadow the steady-state rpm based fuel consumption. A lower rpm equals better mileage on the highway.....but around town that doesn't necessarily hold true.
Dave
True but i think the OP stated he had a 904 with a low gear set in first gear that should help out and IMO it would be a better way to go for what the OP wants to do.
Yep, I don't necessarily disagree (I have a 318/904/2.76 setup in the 'Cuda) but I just wanted to point out what I believe to be an error in fact to do with the contention that a higher gear set ALWAYS means better mileage. I don't think that is true in every circumstance.
Dave
Posted By: 540challenger
Re: Which Engine 318 or 400? - 01/26/11 06:59 PM
Quote:
Quote:
Quote:
Quote:
This thread seems to be losing a bit of focus. It also fails to mention the goals and what car it's intended for.
All else equal, 318 will surpass a 400 in mileage.
Also, I'm not buying the deeper gear might get better mileage. May for the 5 to 10 seconds it takes to accelerate from a light but once you are at a constant speed. Lower rpm equals better mileage.
You have a point, but the truth is that it certainly IS possible to get as good or better mileage AROUND TOWN with a lower gearset. The increased torque multiplication for acceleration from a stop can overshadow the steady-state rpm based fuel consumption. A lower rpm equals better mileage on the highway.....but around town that doesn't necessarily hold true.
Dave
True but i think the OP stated he had a 904 with a low gear set in first gear that should help out and IMO it would be a better way to go for what the OP wants to do.
Yep, I don't necessarily disagree (I have a 318/904/2.76 setup in the 'Cuda) but I just wanted to point out what I believe to be an error in fact to do with the contention that a higher gear set ALWAYS means better mileage. I don't think that is true in every circumstance.
Dave
Very true
Posted By: Mr.Yuck
Re: Which Engine 318 or 400? - 01/26/11 10:52 PM
Quote:
Quote:
This thread seems to be losing a bit of focus. It also fails to mention the goals and what car it's intended for.
All else equal, 318 will surpass a 400 in mileage.
Also, I'm not buying the deeper gear might get better mileage. May for the 5 to 10 seconds it takes to accelerate from a light but once you are at a constant speed. Lower rpm equals better mileage.
You have a point, but the truth is that it certainly IS possible to get as good or better mileage AROUND TOWN with a lower gearset. The increased torque multiplication for acceleration from a stop can overshadow the steady-state rpm based fuel consumption. A lower rpm equals better mileage on the highway.....but around town that doesn't necessarily hold true.
Dave
true. a tale of two trucks one a 94 dakota V6 3.55's one a 95 sport dak w/ 5.2 and 3.92's. Both 5 speeds bought 2 weeks apart. My 5.2 got better gas milage than my buddies V6 and CRUSHED it an every catagory. Why the small engine has to work harder at low rpm to move the vehicle. A 318 w/ 2.76's in a heavy b-body would require the engine to work harder than the 400. Depending on cam, converter selection 2.76's might not even work as well as a stock cam. If you ahve any performance upgrades you need to look at converter and gear selection. For your 2.76's to pay off you will have to be doing a ton of highway driving at a maintained speed.
Posted By: OrangeProwler
Re: Which Engine 318 or 400? - 01/27/11 12:50 AM
To answer a few questions. Yes the car is a 68 B-Body. The 318 is already in the car so no cost there. I also have a 400 laying around already with a 727.
To answer the question on the gears I have thought about 3.23s for the car but, I do like the 2.76 gears as I do have a lot of highway to travel here locally. Most of my driving is done between 55-65 mph.
As far as mileage is concerned I do put a lot of miles on the car and while it's not a huge concern I also kind of want to have my cake so to speak and I do plan driving the car cross country a few times or so I hope in my life. Hopefully that answers a few questions.
Posted By: OrangeProwler
Re: Which Engine 318 or 400? - 01/27/11 12:58 AM
To answer some other questions the reason why I am thinking of doing the 318 is because it is different and the org engine to the car. #2 is because it is about 100 lbs lighter than the 400 not to mention a 904 is 35 lbs lighter than a 727 and with less loss. I figure it might be close in performance because of those factors.
I am considering the 400 because of its bore size, transmission, and because it could make the car worth a little more potentially but, value is not at the top of my list. Just wasn't sure how close it would be because I have heard of 383s and 400s getting 20 mph out on the open road which is where my LA-headed 318 is now.
Posted By: DPelletier
Re: Which Engine 318 or 400? - 01/27/11 01:21 AM
Quote:
To answer some other questions the reason why I am thinking of doing the 318 is because it is different and the org engine to the car. #2 is because it is about 100 lbs lighter than the 400 not to mention a 904 is 35 lbs lighter than a 727 and with less loss. I figure it might be close in performance because of those factors.
There are reasons to use the 318 but the weight vs. performance compared to a 400 aren't some of them. From a pure performance perspective the extra weight of the 400 and it's 727 pay off in spades. If you want to use the 318 because it's the original engine, because it's cheaper or because it may get better mileage, then by all means; go ahead. If you're thinking it will be close in performance I think you'll be disappointed.
A Hemi is alot heavier than a slant six, but.........
Dave
Posted By: HotRodDave
Re: Which Engine 318 or 400? - 01/27/11 04:43 AM
Quote:
Quote:
Quote:
This thread seems to be losing a bit of focus. It also fails to mention the goals and what car it's intended for.
All else equal, 318 will surpass a 400 in mileage.
Also, I'm not buying the deeper gear might get better mileage. May for the 5 to 10 seconds it takes to accelerate from a light but once you are at a constant speed. Lower rpm equals better mileage.
You have a point, but the truth is that it certainly IS possible to get as good or better mileage AROUND TOWN with a lower gearset. The increased torque multiplication for acceleration from a stop can overshadow the steady-state rpm based fuel consumption. A lower rpm equals better mileage on the highway.....but around town that doesn't necessarily hold true.
Dave
true. a tale of two trucks one a 94 dakota V6 3.55's one a 95 sport dak w/ 5.2 and 3.92's. Both 5 speeds bought 2 weeks apart. My 5.2 got better gas milage than my buddies V6 and CRUSHED it an every catagory. Why the small engine has to work harder at low rpm to move the vehicle. A 318 w/ 2.76's in a heavy b-body would require the engine to work harder than the 400. Depending on cam, converter selection 2.76's might not even work as well as a stock cam. If you ahve any performance upgrades you need to look at converter and gear selection. For your 2.76's to pay off you will have to be doing a ton of highway driving at a maintained speed.
I dare someone to explain what it means from a physics point of view what happens in a engine that is "working harder" and getting worse MPG. The fact is the smaller engine is going to have less friction, less pumping losses due to smaller displacement and since you have to run a higher throttle angle to achieve the same HP output you will have less vacuum fighting the pistons downward movement. It will also have the air and fuel molecules packed more closely together so they burn better, just because mopar failed with the execution of the 3.9 does no mean it should get worse MPG than a 5.2 my current 3.9 dakota v6 is the first V6 truck I have owned after owning many 318 and 360 trucks and with the same driving habits it kills ( or CRUSHES) the other dodge trucks I have owned in the MPG department. I built a 318 just to get better MPG in my cuda and got 29 mpg, I got significantly worse MPG with a 2.94 gear than I did with the 2.76 INCLUDEING in town. It is all about execution of the entire package. And if you tune it to get proper air fuel mix and ign timing at low RPM than it will get better MPG when geared higher. Low speed/high load tuning is very hard with a carb and distributor. I also dare someone to explain how they built a 512 cube big block with 4.88 gears that got 29 MPG because it hardly had to work at all to move a cuda. How come a neon with only a 122 cube engine and even heavier than my cuda can get 33 mpg? That little engine is working its butt off to move those things, especially the newer ones that are bigger and have an OD gearset.
Posted By: patrick
Re: Which Engine 318 or 400? - 01/27/11 04:13 PM
another alternative, build the 318 like you plan (but I'd do a little more looking into the torque converter, look for a high stall, but tight converter), and then when you're feeling slow, toss a cetrifugal supercharger on it, boosting it by about 6-8psi...all of a sudden a 320hp/350 tq 318 will be putting out more like 450hp/480tq....
as far as gears, you could look into some 2.94's...they're not the easiest to find, but I think the best compromise gear for a non-od tranny in a car you might want to take on the highway.
Posted By: Mr.Yuck
Re: Which Engine 318 or 400? - 01/28/11 04:13 PM
"I dare someone to explain what it means from a physics point of view what happens in a engine that is "working harder" and getting worse MPG" ??? maybe because you have to put your foot to the floor to get it moving, when all you need w/ a v8 is to nudge it a little.
go ahead build a performace motor and use 2.76's. I'm sure it will run killlller.
Posted By: cjs69mope
Re: Which Engine 318 or 400? - 01/28/11 06:51 PM
Buy a 1000 doller beeter civic or mitsu marage for weekday gas savings.
Build A BIG BLOCK FOR FUN AND WEEK END DRIVING !
#1 gas $ saved during the week will pay for week end gas !
#2 Plus you will feel more acepted at car shows with the big block car and not past over buy most with a wimp small block in there .
#3 I know small blocks can run but it does not mater to the masses
perception and coolness is everything that is why you have a 68 b-body in the first place anyway right ?
Posted By: slantsic
Re: Which Engine 318 or 400? - 01/28/11 08:31 PM
HOW about a 66 valiant with a 170 3 on the tree for a daily driver? You would never be lost in the crowd.
Posted By: shag766
Re: Which Engine 318 or 400? - 01/29/11 11:37 AM
do a little math and put in a t600 tremac. a little pricey but the best of both worlds. i have one going into a hemi b body with 3;90's
Posted By: Dean_Kuzluzski
Re: Which Engine 318 or 400? - 01/29/11 05:29 PM
OK, here's one.............
Put a 4" MP cast stroker crank in that 318 and have more power than a low compression 400 w/o all the required big block parts to make it happen.
Posted By: dustergirl340
Re: Which Engine 318 or 400? - 01/29/11 05:45 PM
Quote:
OK, here's one.............
Put a 4" MP cast stroker crank in that 318 and have more power than a low compression 400 w/o all the required big block parts to make it happen.
I like your thinking! But the "car show" crowd wouldn't be impressed by it, lol.
Posted By: Dean_Kuzluzski
Re: Which Engine 318 or 400? - 01/29/11 08:38 PM
Quote:
Quote:
OK, here's one.............
Put a 4" MP cast stroker crank in that 318 and have more power than a low compression 400 w/o all the required big block parts to make it happen.
I like your thinking! But the "car show" crowd wouldn't be impressed by it, lol.
Thank you! Thank you very much! 
And that, is the beauty of it. Stealth hp & torque to tame those cocky big block guys. Top that lil' stroker with some ported Magnum heads, all on the low-$ side and it'll stun & amaze friends and aquaintances.
Posted By: Mr.Yuck
Re: Which Engine 318 or 400? - 01/29/11 09:03 PM
Quote:
Quote:
Quote:
OK, here's one.............
Put a 4" MP cast stroker crank in that 318 and have more power than a low compression 400 w/o all the required big block parts to make it happen.
I like your thinking! But the "car show" crowd wouldn't be impressed by it, lol.
Thank you! Thank you very much!
And that, is the beauty of it. Stealth hp & torque to tame those cocky big block guys. Top that lil' stroker with some ported Magnum heads, all on the low-$ side and it'll stun & amaze friends and aquaintances.
yeah dump all that money into a small block to equal the HP of a very mild BB build. makes sense. Do it for the 400 and you'll make twice the motor at the same price.. 408 318 small block vs. 512 400 BB.
Posted By: dustergirl340
Re: Which Engine 318 or 400? - 01/30/11 12:25 AM
The 318 is his car's original engine, so that in itself is cool. Stroked big blocks are fine if they are quick...I've seen many only running 12's.
BTW...a 408 would be a stroked 360, not 318.
Posted By: Dean_Kuzluzski
Re: Which Engine 318 or 400? - 01/30/11 12:42 AM
Twice the motor????
A 4" stroked 318 is a 394 or at best 396, not 408.
394 X 2 = 718!!
NOT 512.
Lets keep it real folks.
Posted By: Mr.Yuck
Re: Which Engine 318 or 400? - 01/30/11 12:49 AM
Quote:
Twice the motor????
A 4" stroked 318 is a 394 or at best 396, not 408.
394 X 2 = 718!! NOT 512.
Lets keep it real folks.
just run TWICE AS GOOD. a 318 2bbl in a B-body is as impressive as a super model w/ fakies. Do me a favor build a 394 storker for your b-body and let me build a 512 on the same budget. I'll spot you 3 lights.
If the OP just wants a nice car that sounds good and drives nice by all means do the 318...if he wants ANY performance go big or go home.
Posted By: 540challenger
Re: Which Engine 318 or 400? - 01/30/11 06:30 AM
Quote:
Quote:
Twice the motor????
A 4" stroked 318 is a 394 or at best 396, not 408.
394 X 2 = 718!! NOT 512.
Lets keep it real folks.
just run TWICE AS GOOD. a 318 2bbl in a B-body is as impressive as a super model w/ fakies. Do me a favor build a 394 storker for your b-body and let me build a 512 on the same budget. I'll spot you 3 lights.
If the OP just wants a nice car that sounds good and drives nice by all means do the 318...if he wants ANY performance go big or go home.
Ya does small block strokers are terds. At this point the small block stroker would be much cheaper build for a mild performance engine he has everything he nneds to run a small block. and get some nice heads cheap to make the stroker scream. The amount of money in heads alone for a 512 would put it way over in cost for a street car
Posted By: OrangeProwler
Re: Which Engine 318 or 400? - 02/01/11 04:00 PM
Just wanted to say thank you everyone. Looks like I will go the 400 route for now. Not looking at building a stroker engine. Just something fun and something to cruise/hot rod in leisure times. I really like the 318 though.
Posted By: OrangeProwler
Re: Which Engine 318 or 400? - 02/01/11 04:02 PM
I think I will also upgrade to a set of 3.23s for the car as well.
Posted By: 540challenger
Re: Which Engine 318 or 400? - 02/01/11 04:04 PM
Just more food for thought. This was a 318 build for MPG. Anyway have fun with the 400 iam sure it would be a blast
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