Just curious if you guys could post past/present SBC motors making this kind of power. Solid cams are ok. No more than 11.5:1 compression please. I am trying to get some ideas for the next direction I want to go with my setup.

Seth

 

A bunch come to mind, Mindgame's especially. Not too hard with a solid roller, but not necessarily cheap also.

 

You can use more than 11.5:1 on street gas with the right camshaft.

The key is the heads and intake manifold and matching the right cam to all of it.

Here are some articles about 600+hp small blocks

http://www.popularhotrodding.com/eng...208PHRSherman/

http://www.popularhotrodding.com/eng..._Enginemaster/

I have one of these in the shop and I'm changing the cam from the small 214/224 110LSA cam to a larger one, That should help bring the HP from 570 to 600+ on a Hyd Roller Cam.

A 383 with good heads a single plane intake and a solid roller cam should do 600hp if put together correctly.

Bret

 

yeah mindgame's engine came to my mind also. Check this out: http://web.camaross.com/forums/showt...hreadid=137966

 

Mindgame, Jim LaBreck, Jason Short, etc etc there are quite a few. But i'll let them speak for themselves.

 

Keep em comin . I am most interested in details regarding displacement, compression, cylinder heads and cam specs. Nothing too high dollar tho, the 15* high port heads is kinda pushing it lol.

 

now if you said 600+ horse big block... i could help you there!
im just looking for about 350rwhp from my L98, nothing to major.

 

It's a combo thing. You gotta start with the heads. You are going to need flow in the 300+CFM range and that isn't going to be cheap. You can't decide on a cam and a CR until you decide on the heads.

You haven't specified if this is going to be gen I, II, or III buildup. If I wanted to make 600hp NA for a street/strip small block and were starting with a clean slate, I'd go with an LSx setup. The LSx heads are a big improvement over a gen I 23 degree head and cheaper than exotic gen I heads (unless you can pick up some nice used ones). The aluminum block is a big plus as far as weight goes and an aluminum block gen I is very $$$.

You really need to be more specific about what you have in mind. Gen I, II, III? Carb or FI? What fuel you plan to use, etc.

Rich Krause

 

Heads is where the money is at and a 383 or 406 is going to be the cheapest easiest way.

Bret

 

get some(EDIT: really) good flowing heads, lots of displacement, a good amount of compression... if you follow those ideas you are a good way there!


*Eric*

 

I am looking at carbed gen1 since that would be the easiest for me to do in my 3rd gen (already have a carbed gen1 in it at the moment).

 

As stated in another post, 355 cubes, ported 462 casting "double humps", flowed a whole 255 CFM, solid flat tappet cam,, 11.7 to 1 compression, stock crank, stock rods, forged pistons. Victor jr, 800 CFM Holley carb. This engine had to be making close to 575FWHP to run 11.20@121 mph in a 3300 lb car. Had a 5.13 gear, super t-10, 28x10 slicks. Had a "straight shifter" in it, what a BALL to drive on the street. Kinda reminiscing....sorry.


David

 

The 365 I mentioned is 600 hp carbed SBC it's for sale.

Bret

 

Almost everything we do is over 600 engine hp and 500 RWHP. It just takes the right combination of parts and someone that knows how to machine it and put it together and tune it. You need to think BIG or a blower if you want the motor as driveable as possible otherwise if you don't mind a nasty idle and low vacuum you can really go crazy. You'll make less on pump gas than on race gas but you can still make tons of power.

Most people on these boards miss their projections by a mile because they do not have sufficient intake capability and also try to do it with a smaller engine than they should have. The results are slower yet less reliable engine combos that underperform. You need to know exactly what you want and can deal with in terms of maintenance and driveability and then also what kind of budget are you looking at and how fast do you want to go. We are doing two mid 9 second street cars on this board and I've done others. You just have to know what it really takes and then decide on if you can handle that or go milder if you need to.

 

Fuel economy is not a concern to me, neither is streetability. I think I want something bigger than a 365 solely because I want to run a tighter converter (3500 stall is about the most i want to go) so I think more cubes would help me get out of the hole better on a tighter converter.

Induction shouldnt be a restriction, I currently run a super victor intake anyway.