Previous Thread
Next Thread
Print Thread
Page 2 of 3 1 2 3
Re: cheap 318 build.. need some pointer's [Re: dvw] #1606673
04/14/14 11:36 PM
04/14/14 11:36 PM
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383 Offline
Too Many Posts
70Cuda383  Offline
Too Many Posts

Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
I took a bone stock 5.9. Added a whiplash cam, intake, headers and a computer tune. Chassis Dyno numbers indicated 360-375 crank HP. ET was 14.2 @ 99 mph with 2.2-2.3 60' times. In a 4,000lb truck


**Photobucket sucks**
Re: cheap 318 build.. need some pointer's [Re: lifted85] #1606674
04/15/14 12:09 AM
04/15/14 12:09 AM
Joined: Jun 2006
Posts: 277
Cincinnati, Ohio
C
chargincharles Offline
enthusiast
chargincharles  Offline
enthusiast
C

Joined: Jun 2006
Posts: 277
Cincinnati, Ohio
Well,
for what it's worth:
I went through this a couple of years ago for the 318 in my 5th...
Basically, the cost of rebuilding a set of 302's (not easy to find these days) and a set of Magnum heads (easy to find) was about the same here in Cincy. So, Upullandpay for the heads ($100) plus porting it with a set of MP templates that a friend of mine had ($0, just my hours of work) plus a used Crosswind intake ($50 at swap meet). Already had a new set of AMC lifters (same cost as factory lifters- got them from Autozone years ago)...and all I needed was the thin Mr Gasket head gaskets and the MP pushrods- MP 5007477, 7.625" pushrods. This is a sticking point as they are no longer available from MP, so you'll have to dig for them. Added a AVS that I had been using for another (now sold and gone) car. I went with a mild Jeg's cam that is an RV Cam:

http://www.jegs.com/i/JEGS+Performance+Products/555/200160/10002/-1

The advantage is the Magnum lifters are 1.6 ratio, not 1.5 like the factory heads. So a 'mild' cam can benefit with the larger ratio of lift.

Car runs like a champ- added a set of used headers and a 2 1/2 dual exhaust and it pulls like a freight train. Not easy on a big, heavy luxobarge like the 5th. It really needs a higher stall converter, but I'm build a 408 now, so that will wait until the new motor is ready to drop in.

Everything you need to know to swap the Magnums-

http://www.dippy.org/forum2/index.php?topic=295.0

No more complicated than a regular head swap. Might as well get a higher lift and more compression for the same amount of hassle..or at least that was my thinking...

Hope this helps,
CC.

Re: cheap 318 build.. need some pointer's [Re: dvw] #1606675
04/15/14 06:58 AM
04/15/14 06:58 AM
Joined: Nov 2011
Posts: 256
libby mt
L
lifted85 Offline OP
enthusiast
lifted85  Offline OP
enthusiast
L

Joined: Nov 2011
Posts: 256
libby mt
the 360 i built a while back was a 81 360, torker intake, ported, shaved head's ect ect, gear's were 355's-410's 727 auto.. was a dog, not getting into a pissin match just need some help, like i said i do not want to swap to magnum head's.. i want to 2 if the 714 head's are any good & worth rebuilding


drive fast, drive hard, DRIVE MOPAR
Re: cheap 318 build.. need some pointer's [Re: lifted85] #1606676
04/15/14 07:13 AM
04/15/14 07:13 AM
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383 Offline
Too Many Posts
70Cuda383  Offline
Too Many Posts

Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
If you've already made up your mind on replacing your heads with rebuilt heads by Aero, and have closed off the idea of anything else, then why do you keep asking us for ways to pep up the power under the hood for cheap?


**Photobucket sucks**
Re: cheap 318 build.. need some pointer's [Re: chargincharles] #1606677
04/15/14 12:30 PM
04/15/14 12:30 PM
Joined: Jun 2008
Posts: 10,847
Oakdale CT
gdonovan Offline
I Live Here
gdonovan  Offline
I Live Here

Joined: Jun 2008
Posts: 10,847
Oakdale CT
Quote:

So, Upullandpay for the heads ($100) plus porting it with a set of MP templates that a friend of mine had ($0, just my hours of work) plus a used Crosswind intake ($50 at swap meet). Already had a new set of AMC lifters (same cost as factory lifters- got them from Autozone years ago)...and all I needed was the thin Mr Gasket head gaskets and the MP pushrods- MP 5007477, 7.625" pushrods. This is a sticking point as they are no longer available from MP, so you'll have to dig for them.




A used mag motor complete can be had less than your conversion.

I paid $150 for my last and $200 for the one before that (came with everything including alt and starter). Slap on a $50-$100 intake and your done. The motors are fuel injected and go longer than the carb motors, heck my '98 1500 5.2 has 157k on the clock and runs like a top.

I don't understand the interest in mag heads and not going all the way and running the mag motor. In the long run you will be better off with the mag motor as the cam will never go flat and you can take advantage of better profiles.




"I think its got a hemi"
Re: cheap 318 build.. need some pointer's [Re: gdonovan] #1606678
04/15/14 12:59 PM
04/15/14 12:59 PM
Joined: Jan 2003
Posts: 3,920
n.e. pa.
6
65rbdodge Offline
master
65rbdodge  Offline
master
6

Joined: Jan 2003
Posts: 3,920
n.e. pa.
a $50-$100 magnum intake for a carb where can they be found? how do we get the fuel to the carb on the cheap with a magnum on this truck? these "little" things add up.
the thread says "cheap 318 build" and as per moparts protocol we have the usual build a 360 or go magnum suggestions, soon it will be build hemi. we have ventured way off course here.

lifted85 if you want to swap heads, pull a set of 302 heads from an 85 up to 91 (premagnum) 318 car/truck/van in a junk yard. get a valve lapping tool(suction cup, very cheap), some valve lapping compound(also cheap) and lap the valves. there are videos on how to do this on youtube. its easy. put some 901 springs on using the stock retainers/keepers. call it done. another cheap upgrade, replace the heavy advance spring in the distributer with a light one(think ball point pen thickness) take the heavy spring to a hardware store and match up the length(cost is probably less than a dollar)

Re: cheap 318 build.. need some pointer's [Re: 65rbdodge] #1606679
04/15/14 03:22 PM
04/15/14 03:22 PM
Joined: Jun 2008
Posts: 1,822
Colorado
D
denfireguy Offline
top fuel
denfireguy  Offline
top fuel
D

Joined: Jun 2008
Posts: 1,822
Colorado
Quote:

a $50-$100 magnum intake for a carb where can they be found? how do we get the fuel to the carb on the cheap with a magnum on this truck? these "little" things add up.
the thread says "cheap 318 build" and as per moparts protocol we have the usual build a 360 or go magnum suggestions, soon it will be build hemi. we have ventured way off course here.

lifted85 if you want to swap heads, pull a set of 302 heads from an 85 up to 91 (premagnum) 318 car/truck/van in a junk yard. get a valve lapping tool(suction cup, very cheap), some valve lapping compound(also cheap) and lap the valves. there are videos on how to do this on youtube. its easy. put some 901 springs on using the stock retainers/keepers. call it done. another cheap upgrade, replace the heavy advance spring in the distributer with a light one(think ball point pen thickness) take the heavy spring to a hardware store and match up the length(cost is probably less than a dollar)


Any 318/340/360 four barrel intake will work if the Magnum mounting holes are redrilled and tapped to accept the manifold. I am running a 5.2L magnum I picked up for 50 bucks. On top of it is a Edelbrock 340 intake I paid $100 from a fellow Mopar guy. On it is an Edelbrock 1406 I paid $75 for on Ebay (New in box). $60 Holley electric fuel pump but you can put an eccentric on the front of the magnum to run a mechanical on an LA timing cover. I am running Engine Quest Magnum heads that were ordered with the LA holes tapped into it so I skipped that step but there are many threads on here on how to tap them yourself. Another 125 for a Beauchillon Engineering throttle cable and plate for the torqueflite and gas pedal and that was it. I believe I have less in it than the OP has already spent. The only high ticket item was for the heads. I had already ordered them for the my original 318 but when the magnum engine popped up, I changed direction in a New York minute.
Advantages: roller cam so no zinc in oil worries, higher compression ratio (62cc magnum chambers), better breathing in and out, looks just like a 318 and it has more horsepower than the 318 it replaced.
Craig


2014 Ram 1500 Laramie, 73 Cuda
Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango
Only previous Non-Mopar: Schwinn Tornado
Re: cheap 318 build.. need some pointer's [Re: denfireguy] #1606680
04/15/14 03:35 PM
04/15/14 03:35 PM
Joined: Jan 2003
Posts: 3,920
n.e. pa.
6
65rbdodge Offline
master
65rbdodge  Offline
master
6

Joined: Jan 2003
Posts: 3,920
n.e. pa.
so he has already spent money on this motor so a cheap pointer(what he is asking for) would be for him to start over with a totally different motor/parts? I am aware of redrilling magnum heads, I made this jig-


Re: cheap 318 build.. need some pointer's [Re: denfireguy] #1606681
04/15/14 04:56 PM
04/15/14 04:56 PM
Joined: Jan 2003
Posts: 16,376
D
dogdays Offline
I Live Here
dogdays  Offline
I Live Here
D

Joined: Jan 2003
Posts: 16,376
If the 714s have a heart shaped combustion chamber, they are like the 302s. That number sounds vaguely familiar. Later: I did a little websearching and it seems they are brothers to the 302 head.
Heart-shaped chambers, use a rocker shaft, 1.78/1.50 valves. No need to use 302s when the 714s are the same head.

And no, they are NOT Magnum heads, at least the type of Magnum that has rockers on studs.

R.

Last edited by dogdays; 04/15/14 05:27 PM.
Re: cheap 318 build.. need some pointer's [Re: dogdays] #1606682
04/15/14 05:45 PM
04/15/14 05:45 PM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
S

Joined: May 2003
Posts: 15,487
Florida
correct 714 casting replaced the 302 casting or vis-versa

same swirlport fastburn closed comb chamber small port small valve 318 head.

dith the exhaust valve rotators for more guide to retainer clearance with a higher than stock lift cam lobe.


Re: cheap 318 build.. need some pointer's [Re: dogdays] #1606683
04/15/14 05:46 PM
04/15/14 05:46 PM
Joined: Jan 2003
Posts: 2,931
P
Paul_Fancsali Offline
master
Paul_Fancsali  Offline
master
P

Joined: Jan 2003
Posts: 2,931
Good old fashioned cheap build A set of 1.88 intake heads off a 360 set of valve springs Comp 260 cam no roller just a cheap cam. Stock 340-360 intake, set of headers, Good carb Holley 600 Dbl pumper or Q jet, Carter AVS Set of 3.55 gears and go racing with a 4300lb cars the engine will pull low to mid 15s or faster without really trying. A good curve on dist will also help with the et's

Re: cheap 318 build.. need some pointer's [Re: Paul_Fancsali] #1606684
04/15/14 06:19 PM
04/15/14 06:19 PM
Joined: Jun 2008
Posts: 10,847
Oakdale CT
gdonovan Offline
I Live Here
gdonovan  Offline
I Live Here

Joined: Jun 2008
Posts: 10,847
Oakdale CT
Quote:

Good old fashioned cheap build A set of 1.88 intake heads off a 360




Drops the compression too much, been there and done it.




"I think its got a hemi"
Re: cheap 318 build.. need some pointer's [Re: 65rbdodge] #1606685
04/15/14 06:21 PM
04/15/14 06:21 PM
Joined: Jun 2008
Posts: 10,847
Oakdale CT
gdonovan Offline
I Live Here
gdonovan  Offline
I Live Here

Joined: Jun 2008
Posts: 10,847
Oakdale CT
Quote:

a $50-$100 magnum intake for a carb where can they be found? how do we get the fuel to the carb on the cheap with a magnum on this truck? these "little" things add up.





As do used heads, headgasket sets, new pushrods, AMC lifters, etc.

I can get a complete magnum engine for less than a set of heads and gasket set.

Here is one I did not even try hard to find-

http://newhaven.craigslist.org/pts/4417893722.html

"I have a v8 5.2 318 dodge ram motor it runs great no leaks around 120,xxx miles fits 94-01 includes alternator, belt tensioner pulley, a.c compressor, power steering pump, water pump, fan, upper radiator hose, wiring harness, ignition coil, exhaust manifold, cruise controll everything works no problems $300 call"

or a 5.9 for $600 from a yard (there are better prices on these, this one found at random.

http://southcoast.craigslist.org/pts/4423034174.html

"5.9 engine taken out of a 97 dodge ram. has 72,000 miles. engine is complete and ran excellent"




"I think its got a hemi"
Re: cheap 318 build.. need some pointer's [Re: gdonovan] #1606686
04/15/14 10:32 PM
04/15/14 10:32 PM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
S

Joined: May 2003
Posts: 15,487
Florida
Quote:

Quote:

Good old fashioned cheap build A set of 1.88 intake heads off a 360




Drops the compression too much, been there and done it.




me too, but the right cam makes up for the low comp ratio

like the whiplash roller cam I stuck in my 91 318, it has short duration/high lift/early intake closing/tight LSA to build cyl pressure and not bleed off torque.

then add a loose TC and some gear the lopo 318 will get with the program.

but it is at a street engine level not a racing engine level of performance.

performance above street level is more $$$ and not so cheap.

Re: cheap 318 build.. need some pointer's [Re: scratchnfotraction] #1606687
04/15/14 10:44 PM
04/15/14 10:44 PM
Joined: Jan 2003
Posts: 2,931
P
Paul_Fancsali Offline
master
Paul_Fancsali  Offline
master
P

Joined: Jan 2003
Posts: 2,931
I agree they do drop compression, but as stated the cam and a ton of timing can make it run and use only the 87 octane. ran a 15.7 with a set of 3.55s and a stock 318 with headers and cast iron intake with a TQ off a lean burn engine. the cam was stock with a lousy set of 360 heads that had terrible guides. But it ran consistant in a car that had a 4300 lb racing weight

Re: cheap 318 build.. need some pointer's [Re: scratchnfotraction] #1606688
04/15/14 10:49 PM
04/15/14 10:49 PM
Joined: Mar 2006
Posts: 9,824
MI, usa
dvw Offline
master
dvw  Offline
master

Joined: Mar 2006
Posts: 9,824
MI, usa
My last gas truck was a 82 dodge 1/2 ton ,3.91 gear. I swapped in a bone stock 360 magnum. Removed the injection and ran a M-1 dual plane w/600 Holley. With a full fiberglass rear cap it ran 14.80@94.
Doug

Re: cheap 318 build.. need some pointer's [Re: dvw] #1606689
04/15/14 11:02 PM
04/15/14 11:02 PM
Joined: Dec 2013
Posts: 4,669
Wichita
G
GY3 Offline
master
GY3  Offline
master
G

Joined: Dec 2013
Posts: 4,669
Wichita
I almost didn't post here due to some of the idiotic comments.

I have a 360 in my '75 Powerwagon and it will run circles around the 318 that was in thefe before. Many things can make an engine not perform up to it's potential, including low compression, cam that is not degreed when installed, poor selection of parts, etc.

I've also done the 360 head swap on a 71 318. Engine was sloppy worn, low compression, stock bottom end, stock 1.88 valve heads. Nothing more than a mild cam and headers on the engine and it would run 14's at 95 mph in a 3500 lbs.car with 3.23 gears!

Attention to detail is what gets you there. No reason why either combo should not perform!

Re: cheap 318 build.. need some pointer's [Re: 65rbdodge] #1606690
04/16/14 12:31 AM
04/16/14 12:31 AM
Joined: Nov 2011
Posts: 256
libby mt
L
lifted85 Offline OP
enthusiast
lifted85  Offline OP
enthusiast
L

Joined: Nov 2011
Posts: 256
libby mt
Quote:

a $50-$100 magnum intake for a carb where can they be found? how do we get the fuel to the carb on the cheap with a magnum on this truck? these "little" things add up.
the thread says "cheap 318 build" and as per moparts protocol we have the usual build a 360 or go magnum suggestions, soon it will be build hemi. we have ventured way off course here.

lifted85 if you want to swap heads, pull a set of 302 heads from an 85 up to 91 (premagnum) 318 car/truck/van in a junk yard. get a valve lapping tool(suction cup, very cheap), some valve lapping compound(also cheap) and lap the valves. there are videos on how to do this on youtube. its easy. put some 901 springs on using the stock retainers/keepers. call it done. another cheap upgrade, replace the heavy advance spring in the distributer with a light one(think ball point pen thickness) take the heavy spring to a hardware store and match up the length(cost is probably less than a dollar)


thanks 65rbdodge hit it right on, sound's like what i will do. to the other member's i was lookin for a cheap upgrade, the magnum head swap aint cheap, the little thing's add up pretty fast, & why would i pulled a motor that run's good for a magnum?? i just want a little more pep. like i said i wanted some cheap idea's.. & as for the 360, sorry IM NOT A FAN!!! just like some folk's aint a fan of the 318's..


drive fast, drive hard, DRIVE MOPAR
Re: cheap 318 build.. need some pointer's [Re: 65rbdodge] #1606691
04/16/14 01:36 AM
04/16/14 01:36 AM
Joined: Jan 2003
Posts: 3,009
Covington Georgia
RV2 Offline
master
RV2  Offline
master

Joined: Jan 2003
Posts: 3,009
Covington Georgia
Quote:

a $50-$100 magnum intake for a carb where can they be found? how do we get the fuel to the carb on the cheap with a magnum on this truck? these "little" things add up.
the thread says "cheap 318 build" and as per moparts protocol we have the usual build a 360 or go magnum suggestions, soon it will be build hemi. we have ventured way off course here.

lifted85 if you want to swap heads, pull a set of 302 heads from an 85 up to 91 (premagnum) 318 car/truck/van in a junk yard. get a valve lapping tool(suction cup, very cheap), some valve lapping compound(also cheap) and lap the valves. there are videos on how to do this on youtube. its easy. put some 901 springs on using the stock retainers/keepers. call it done. another cheap upgrade, replace the heavy advance spring in the distributer with a light one(think ball point pen thickness) take the heavy spring to a hardware store and match up the length(cost is probably less than a dollar)





What are 901 springs? Can you elaborate
Thanks

Re: cheap 318 build.. need some pointer's [Re: RV2] #1606692
04/16/14 01:49 AM
04/16/14 01:49 AM
Joined: Nov 2011
Posts: 256
libby mt
L
lifted85 Offline OP
enthusiast
lifted85  Offline OP
enthusiast
L

Joined: Nov 2011
Posts: 256
libby mt
Quote:

Quote:

a $50-$100 magnum intake for a carb where can they be found? how do we get the fuel to the carb on the cheap with a magnum on this truck? these "little" things add up.
the thread says "cheap 318 build" and as per moparts protocol we have the usual build a 360 or go magnum suggestions, soon it will be build hemi. we have ventured way off course here.

lifted85 if you want to swap heads, pull a set of 302 heads from an 85 up to 91 (premagnum) 318 car/truck/van in a junk yard. get a valve lapping tool(suction cup, very cheap), some valve lapping compound(also cheap) and lap the valves. there are videos on how to do this on youtube. its easy. put some 901 springs on using the stock retainers/keepers. call it done. another cheap upgrade, replace the heavy advance spring in the distributer with a light one(think ball point pen thickness) take the heavy spring to a hardware store and match up the length(cost is probably less than a dollar)





What are 901 springs? Can you elaborate
Thanks


compcams 901 valve spring's


drive fast, drive hard, DRIVE MOPAR
Page 2 of 3 1 2 3






Powered by UBB.threads™ PHP Forum Software 7.7.1