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.