how do you make 756HP with a n/a 416?

steve clukeys engine is one bad ass small block. what do you think it would take for heads, cam and compression to make this kind of power? I'm thinking hes using the 245cc heads on this as the peak torque is way high at 6100rpm.
https://www.youtube.com/watch?v=5vMv5zjW9oI

how? NASCAR type money, that's how.

I know of a W9 340 combo that made 696? So just add cubes, easy right? lol

1.82 per cube. Definitely doable.

Lots of $$$

this is with indy heads. im thinking he may have $15,000-20,000 in it. how do you do it with indy heads not W heads? if it has 14:1 compression, .700" cam and 245cc heads would this be enough to make 750ish? hp peaked at 7000@756

Man I wish we could just race dynos instead of wasting our time going to the track. Not happy with the numbers change the correction numbers. Lol. So many of these builds are disappointing once they hit the track

the car runs low 9's in a duster with ladder bars and comp engineering shocks. nothing fansy here. it has been in the 8's as well. maybe that puts things into perspective here.

Not speaking of the engine build in question here in particular, but a LOT of them I've seen never amount to much at the track.

Should it be installed in a 1977 royal monaco with 2.73 gears and a stock converter, mismatched 15 year old uniroyal tires and original shocks then taken down the track so you can get its real horsepower?

So many builds are put into disappointing cars if only there was some sort of tool to test it prior to installing it.

My 454 indy headed SB made 778 @ 6500. It has a very mild roller,X block. Its been 5.66 @ 120 in my 2850# Duster. Its also broken its share of 904 parts and 8 3/4" rears. Now it has a dana.

sounds like a real nice combo you have.

iv seen some chassis pics of the other side of steves car. nothing expensive under there. i have way more invested in my chassis and cant get out of the 10's. motor and trans is his biggest expense. like i said before chassis engineering shocks on each corner. im just amazed at how well the car works with what he has there.
again, any ideas at to what you think might be in that 416 combo?
https://www.youtube.com/watch?v=UDBkXRiDkxU

heres another https://www.youtube.com/watch?v=HTybSlxVelM
alot of guys on here talk about how important good shocks are as well as chassis set up. steve has none of that and the car runs fansastic every run.

😂😂😂😂😂😂

Well I see a vacuum pump so I'm betting a custom piston and ring package, at that compression VERY expensive gasoline, betting on a bigger than stock intake valve and heavily ported heads and intake, roller cams a big help, and it sound like a well built standard transmission. Just my thoughts.

seems like his et would be better than low 9's w/ 756hp. unless he has a ton of mph?????

9.09 @ 145, looks to me like it's smoking' right along.

What's stock valves or ported heads have to do with anything? Is there a "cheap" race gas? Tons of street cars have ported heads. Hell my new street/strip build has custom pistons and ported heads, intake too. Oh yeah, roller cam too.

Justinp61...Pittsburghracer was just trying to help figure out what this combo consisted of, which the OP was asking about in his first post.
I agree that this particular combo seems to run good. Love the Lenco!

Look's to me like the guy has the "Package" pretty well scienced out.

AWESOME CAR !!!!!

Yes it does have a vac pump and the usual go fast parts,but so do I minus the vac pump. There is no 4 LINC with double adjustable afcos all around. Just a floating ladder bar a d junc shocks, yet it wheels up every launch and straight as an arrow. He launches at 6000 and shifts at 7800. I'm a little impressed with his combo.

Yes its a very nice combo and runs great. Just trying to point out that its not a cheap build or probably one that I would pick for a weekly bracket raced program. If it truly weights in the 2800 pound area that makes it even more impressive.

I understand. Wheather its making 750hp or not I think it runs real good. The front end is all stock but the junk shocks. No tubular control arms or coil overs. A Dana with reinformant and ss spring's and ladder bars on floaters. A very affordable setup IMO. It does have a nice cage. The money is in the engine and trans. My original question was about how do you make that kind of power with what he has.

Also,if you look at the engine pics you'll see Harland sharp rockers,not t&d or jessel and some of the Carbs had press in air bleeds and the block is an X block,not an r3 or some other high dollar race block like some on here say you must have to live. This engine sees 8000rpm regularly. What kind of compression do you think it would take to make 750 with this combo?

There is so little difference between the "X" blocks and the "R" blocks it is of little consequence (not including deck heights and over bore potential).

No kidding? I could of bought a X block 5 yrs ago for $1000. Guess I should of bought it. I have heard the bores are thin thou.

That car is VERY impressive and looks like a fun ride.............

My old 422 w5 got upgraded and ended up making about 707 horsepower. I would think with a bigger head a true 750 would be easily possible.
Best Machine dyno'ed the W5 and it ended up running 140mph in a 3220 pound Super stock spring car with a 727.
So the numbers definitely line up. That's 14 to 1, gas ported slugs, 043 ring pack, and very good attention to detail in the machine work. Nice heathy roller.

I just bought one for the smokin price of $800.00 I'd buy every one I can.

BTW I have sonic'd 5 different "X" blocks (including the one I have now) and all would go 4.100 easy. This one will go 4.125 max. I don't know where Chrysler got the 4.03 bore max.

Don,what compression and cam was in that? What was your port size? If you look at Steve's Dyno sheet you will see peak torque at 6100. How does that happen? He tells me it has a 4" crank.

That was a very good buy. If I stay in the SB world I will look for another X block then.

I would guess Steve's engine is 14:1+ compression and a very large roller .700+ with the 245 intake port?

Torque peak at 6100 rpm requires a decent port cross section and a healthy camshaft. If you can get an engine to peak up there then you'll usually make good power.

14 or 15.1 compression
Indy 245 heads and intake done from Brett
Custom step headers and a good dominator
And of course a good cam which doesn't need to even be over 800lift.

14 or 15.1 compression
Indy 245 heads and intake done from Brett
Custom step headers and a good dominator
And of course a good cam which doesn't need to even be over 800lift.
20.000 will get what you need no problem

People often say it don't run what the #s on the dyno say...Well how many have great working cars ? Half of the mopar guys won't send a converter out or invest in proper shocks..Not The motors fault imo.
My car had freakin tti headers,3.91 gears,and a 5000 stall which IS FAR FROM OPTIMAL FOR A RACE CAR because I drove it on the street.

that's the reason for my comment about the "package",,it's not just the motor that does the work.

Dave you make it sound like its hard to do. The Indy head makes good power and with proper machine work and a solid combination you are there. https://www.facebook.com/media/set/?set=a.605850896137264.1073741836.135175363204822&type=3


This engine did cost appox 24,000 that included the new R3 block and a Callies crank, Compstar rods, CP pistons And T&D rockers. We used his 4150 carb and Vac pump. VP C-12 fuel was used and the heads were CNC ported at Indy and no other work was done to them.

Why did you go with a 59 degree motor

Block avaiblity at the time, no other reason. A 48 degree would be fun with a 60MM cam and 4500 carb.

Pete are you refering to steve clukeys engine or another customers of yours? i think steve has always ran a 4500 carb and its on an X block and using harland sharp rockers.
im just alittle taken back by how well the car works with medium investment. iv seen most exoitic set ups that dont work like his duster.

The odds of getting into territory the 59* can't handle with an indy 245 is SLIMMMM

Nobody remembers the old 59* W9 stock suspension dart with one kit that was running 5.1X 10 years ago with big wheel stands killing some ET!? That car proved to me that 90% of us would be totally fine with 59* blocks.

Shame nobody else noticed

I failed to mention that issue with the "X" and "R1" and evidently some of the "R3's" could be had with 59* LBA's. I had forgotten about the "R3's".

The real issue with the 59* LBA is net valve lift and RPM potential. I ran my 59* stuff to 8500 plus but it was nightmare. And I always felt I could use way more lift that I was using (net .750). As far as durability the blocks are pretty much the same.

Dave I am referring to both, I put a link to our build for you, there are no magic parts used. Your post asked how to make that power, its not that hard to do was my point, how well someone's car works is something different, that all.

Ok. Thanks Pete.

I'd say right now the hot ticket would be "IF" you had a 48 degree block laying around would be to pony up for the W8 top end Brian Smith is selling. A person could scale that back and have a very dependable low 9 set up at non stratospheric rpms.

I don't and this is my last rondevou with small blocks. Next and final build with be pump gas 470 or maybe 499. I just would like to get into the 9's as a personal goal.

Asking from experience here, if you have a goal why not start building the BB now? Why put money anywhere other than your dream?? I wish I had all the money back that I spent on motors that weren't what I wanted... I'd have 2 of what I have now!

Small blocks are fun but it's so much cheaper, dependable, and longer lasting to run 8's with a big block

That's because part of the goal was to do it with a small block. Takes a little more thought and planning. If the bb does 11's I will be happy.

this one is on the money ,std 360 block asp
408 small block and 727 trans
$25,000 — Gold Coast, Queensland
Small block,indy 360-1 heads and manifold
Complete sump to carby
Afd 950 carby,electric waterpump,vacumm pump,msd 7 digital,crank trigger
Msd starter motor,pipes
Advanced engines built march 2015
Protrans built 727 with proflite internals
Grinner reverse pattern transbrake valve body
A1 converter
Best 9.33 @144mph in 3150lb car
1.30 6o foot,5.9 @115 half track

What was nightmare about it?

wow. thats smokin Ian. sounds like a real nice combo. im assuming the indys are the 245cc version? do you know the cross scetion on those indys?

I agree but a bb should run them numbers without blinking an eye...and imo it's not a challenge.
I have friends with stock block sb chevys in the 7 sec zone...Yes Stock block 23* and to me it's different and exciting response to Pittsburghs post.

The weak thing about the 59* block is the head selection and limitations.
8000rpm is no problem and with a 440 or 482 ci sb rpm wouldn't really be needed.

Oh don't get me wrong, I like a good challenge but I also like doing it on a budget. My stock block 360 with edelbrock heads will probably be in the 9.50's (@ 2800 pounds) this year with nothing fancy in it. But my 512 will be in the 8's at 2800 pounds and I only have about 7500-8000 dollars invested including my mega block

It is in the cylinder heads. I'm currently helping with a 427 SB Chevy project that will make about 900 hp NA. Single carb on a ported cast intake. The heads flow 380 cfm which is more than Indy -1 BB heads flow. 15:1 compression with a flat top piston since the chambers are so small. So if you had a head that good for a Mopar you would make the same power.

im trying to get a 3300# street car(with a cage) into the 9's. my pump gas 408 got me a best of 10.35@131. without a bunch more investment i decided to rebuild it with more head, cam and compression(13.3:1). i hope this works. if not i have a holley t ram thats going on with annular 1000hp's. i have fun trying to figure this stuff out and when i cant, i just ask on here.

Dave did you ever put the main stud girdle on? I'm trying to decide if i need one for the 340 stroker build.

Yes. It is installed. I'm using a 71 360 block filled above the soft plugs and using ARP studs.

Hmmmm 750 HP lol I wonder

Not sure what your referring to. My new build is on the stand waiting for the Dyno and it will not make 750. I will be happy with 650.

What head did u use

Hi Dave, that combo has not got the 245 on it but ported over here all i know it has big cam shift 7800 14.1 comp the guy that build it has a heap of chev,fords running 8 s in full weight cars . as you know i made 800 hp with my 360 on gas 9.50 @143 at 3550 lbs race weight and i sold it a year ago ,the block was starting to give up a little .lol i brought it back last week and i will re block it and will try to make 900 hp with it lol should be fun

What head did u make 800 with

I used the 360-1's fully ported to 230+cc range and max flow was 330@700 and 800. Mid lift numbers are way up as well. Dwayne welder did all the work. They look real nice. Will see how they perform.

It should make some good power I got the same heads

Impressive. Sounds like that guy really knows how to make power.

What are your engine HP numbers and what does your combo run? What have you done to your heads.

the 230 cnc indy but on gas/nos

My engine guy did some stuff but my car runs really well full body car no Trans break stock block.

. Press on the pic

Nice. Same here. Full body with caltracs rancho full interior with cage. What have you done to your suspension?

Caltracs shocks straight up with Santuff shocks

Dave, what cam and intake are you using?

Bullet did another regrind on it. Now its 267/275@50-.688/.688 on 106. Same ported Indy intake.

Dwayne welder got the exhaust flow better as well. 210 to 144@700. Smaller exhaust valve too 1.625 vs the old 1.650. The whole package should work much better.

Our builds are similar, heads and intake are the same. I'm only 11.2-1 though. my cam is 263/271 @ .050., .741/.738", 4.09" bore and 4.125" stroke for 434". Mine should be finished and on the dyno next month. I'm not planning on posting any numbers though, to many arm chair experts.

This sounds good

OK. I understand. I'm not putting mine on the Dyno for bragging rights neither. Just want to make sure it stays together and get the peak torque rpm so I can send my vert back to Lenny for a recal.

I hope you change your mind and post the numbers. If you use all you stuff (headers, ignition, carb) the dyno should be so close that no one can say anything. It's when you star using "dyno" this and that that the numbers get skewed.

I have one Lenny will have to work on too, it flashed 5200 behind my 408 so I'm sure he'll need to do his magic.

Anybody doing better than 330-340cfm with the indy 245? I've been warned mine are at there limit but I was thinking about looking for more... not scared to weld them

I thought the 245 version would go in 350s. Do a search here, Ryan Johnson posted some info on them a couple years back.

i dont know what the 245's and capable of but ryan has got 330 out of the 360-1.

I spoke to Ryan about porting mine, he told me to send them to Indy and have cnc ported and the he would do the valve job. Ryan said Indys cnc program was very good.

Brett Miller ported my 360-2's and they flowed 337 @ .650 I would think you could get a lot more out of 360-1's.

Bring your ear plugs if you do that, and put them on a bench after. Ear piercing you could say.

These heads work well

Agreed, I run a set, but I don't use Indy porting on our set.

You did your own

I spoke to Brett too, he was busy at the time and couldn't do mine. He also said he preferred the -2 head. Brett is a very sharp guy who doesn't mind sharing his knowledge and experience. I spent quiet a bit of time on the phone with him picking his brain. Hopefully I put some of what he shared to good use.

Good dude

Top notch

He also came up with my cam specs for pump gas.

Dave, not to be off topic but I am looking to build a pump gas motor would you mind sharing spec on the engine, trans and rear?? I tired to PM you

Lol really

850 holley, indy intake, 360-1 heads 228cc port flowed 325@.700, solid roller 260/269-.712/.688 on a 106, 11.3:1 compression, .036 quench, 1 7/8 hedman headers, 8" 5400 stall, 4.30 gear, 28" tire.

I think he's the one that was getting 330. I'll have to look at my paperwork and his info

https://board.moparts.org/ubbthreads/ubbthreads.php/topics/34501/indy-360-1-245-cnc.html


D-50, my cam is what Brett recommended too.

I don't think so. The 360-1's start out at 210cc. Dwayne found water twice getting g 330cfm out of them.