I've been doing a lot of reading and have come across a few things about high rev engines. I am looking at starting a project engine and want to find out more. I would like to build a short stroke, big bore combo that would rev fast and be able to make power up 6300+ rpm. I know that some company managed to make a 302ci. z28 LS1 by throwing a smaller crank from a truck in it. I would like something like that but atleast a 327 ci. engine that could make 550-600 hp at the wheels n/a. Anyone have suggestions or other links that could help me? Thanks in advance.

<small>[ April 29, 2002, 11:07 PM: Message edited by: Brandon98TA ]</small>

 

ttt

 

Brandon, you should consider a crank from a 4.8L (3.269 stroke)LS1, with a 4.155 bore and the 6.2 inch rods. you should see 353 cubes with this, just make sure your valvetrain is light.

 

Thanks rrheads. I also am looking into your head porting. Anyone else have suggestions? Thanks.

 

To reach your power goals with out a power adder you are looking at making a vehical that will not longer be streetable.

550-600 at the wheels is like 670 HP at the crank. First of all, to flow the air necessary to power an N/A motor you'll need a custom sheet metal manifold; however, I have still not seen a manifold for these engines that flow extremely well. We'll have to wait and see on the new ported Holley intakes. Secondly, with a smaller CI motor and the high HP numbers you want, you're going to have to spin the motor WAY higher than 6300 rpm. Try like 7500-8000 with a really high duration cam.

Basicly as I said before, I don't believe your goals to be possible/streetable with out a power adder. Now if you were to build a small CI high reving single turbo'ed motor, that would be cool/might work. Or if you build the bottom end really strong and gave it a healthy does of N20. Either way, I think the idea is very good; however, the goals are a bit lofty.

- Matt <img border="0" alt="[guns]" title="" src="graemlins/gr_guns.gif" />

<small>[ May 01, 2002, 09:31 PM: Message edited by: Magnus357 ]</small>

 

SAM built an engine for someone here on LS1Tech that spins to 8000 pretty reliably. Can't remember the thread. If I find it I'll come back and post it.

'Los

 

https://ls1tech.com/ubb/cgi-bin/ulti...c;f=1;t=004760

I would love to have a V8 that could rev like that. <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />

My little '93 Nissan NX2000 (don't laugh <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" /> ) revs to 7500 without breaking a sweat. Wish my LS1 could do that (reliably).

'Los