New to LS1 and LS2 general HP question

[maca]

Hey guys
I assume you guys have the same LS engines in the USA as we have here in Australia. I have an old school car and I am looking at putting a modern engine in it. I want to keep it a non boosted engine and I would like to find an engine that will give me between 400 and 500 rear wheel HP. I have read a bit about the LS engines and the articles I have read claim that with nothing more than a cam, extractors and cold air intake this is possible. Is this the case or will I need more work to get to this HP level
cheers Maca

[bosco]

We have used LS1's in our road race stock cars for about 10 years. Here are some examples of some relatively low cost, mild builds that have performed well:

* LS1 346 ci, stock rotating assembly with stock 243 LS6 heads and GM ASA Hot Cam, Edelbrock LS1 performer RPM intake & Holley 80541 650 cfm carb, single stage scavenge dry sump with stock oil pump for pressure. 465 HP about 430 torque at the flywheel 6500 rpm max

* same motor as above but with 550/550 236/246 cam = about 490 HP 430 torque 6800 rpm max

* stroker LS1 383 ci, 11 to 1 comp, ported 243 heads, 600 lift cam, Victor jr Intake, Bo Laws 750 Holley, 3 stage dry sump = 560 HP 500 torque @ Flywheel. 6800-7000 rpm. Great easy to drive road race motor with torque everywhere.

We have had some similar build factory EFI motors that made a little less HP but usually 10-15 more lbs ft of torque.


your results may vary...

[maca]

Thanks that's great info.
Just trying to work out what Engine put in this old car. LS1 and LS2 swaps a very popular in Australia. Also another popular engine for swaps is a Ford engine called a barra.
They are turboed and make good power on stock internals