Become a Fan!


Remember Me

Lost Password?

Register now!
Main Menu
Who's Online
36 user(s) are online (17 user(s) are browsing Forums)

Guru Dictionary
Print in friendly format Send this term to a friend  L98
The GM designation for the 5.7 liter, (350 cubic inch), TPI motor. This motor was used in other GM vehicles, but was used in the Corvette from 1985 t...
Supporting Vendors
Mid America Motorworks
Mid America Motorworks FREE CATALOG

FIC 770-888-1662

Registered Vendors
Guru Friends
Supporting Banners - Revolutionizing Tire Buying

Shop for Winter Tires Now!

Support This Site
 Register To Post

djxib Small power bump
Senior Guru
North Georgia
449 Posts
Member since:
2008/8/23 11:49

Yeah I know where this is heading. My '92 had 600 at the wheels and sounded like it was driven by Chuck Norris.

The stock LT4 feels really good, but isn't really any quicker than my little old Audi S3 (and sometimes feels less urgent).

Not sure I want to go boosted again.. but maybe headers, 3" exhaust and a lumpy cam would net me an extra 100 horses? I promised the missus I wouldn't do anything crazy with this one but the fever is real. (or maybe I just came down with C19).
Posted on: 6/20 12:10

1996 Greenwood Collectors Edition LT4

Previously 1992 Convertible Polo Green. 383 LT1/LT4 forged/balanced. V7-YSi, Alky. 608RWHP... Now sitting at a dismantler with a salvage title. Still runs...
Transfer the post to other applications Transfer

bogus Re: Small power bump
Grand Imperial Pooh-Bah
San Pedro, CA
20619 Posts
Member since:
2005/9/7 0:00

Horsepower corrupts... absolute horsepower corrupts absolutely.

Spoiled? Or the reality 360hp just ain't all that much anymore?

I look back on some other LT4 builds... The LT4 hot cam, or something of that vein, was always a good call. Long tube headers, for sure... thinner head gaskets - the Impala head gaskets, good for a half point pop in compression.

Maybe some clean up of the heads? Not a lot, because the LT4 head was already pretty good... but some mild port matching and such.

Also, get some NGK plugs and good wires... the OEM Delco platinums are junk-o-rama.

Posted on: 6/20 16:03
The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw

Education is the best tool to overcome irrational fear. - me

Transfer the post to other applications Transfer

You can view topic.
You cannot start a new topic.
You cannot reply to posts.
You cannot edit your posts.
You cannot delete your posts.
You cannot add new polls.
You cannot vote in polls.
You cannot attach files to posts.
You cannot post without approval.

[Advanced Search] is independently owned and operated. This site is not associated with or financially supported by General Motors.

Copyright 2008-2015 is a Guru Garage Site (Coming Soon!)

If you have any questions about our site, please contact us at

Powered by XOOPS 2.56 Copyright 2001-2014

Hosted by