93redz

Is there any intake manifold for the lt1 that will up hp without having to change anything around. just testing the waters of what mods i should save money for. Any info is appreciated. THanks

felton316

Most people run a ported LT1 stock version. If you use an LT4 intake than you must also use LT4 heads.

93redz

how much does porting cost and do any other mods have to be done at the same time?

Serial Thriller

There's not much involved in porting an LT1 intake, but it's not worth it unless your heads are ported also.

<small>[ April 17, 2003, 02:01 PM: Message edited by: Serial Thriller ]</small>

96SCTA

Some one needs to come out with an aftermaarket intake for us lt1 guys. They have to be able to imrove over our stock ones...dont you guys think so

Gangly

actually, suprisingly enough, the LT1 intake is very good from the factory. porting the intake only shows a very minimal increase in HP on stock displacement motors, and maybe an additional 5=10 more rwhp on top of that for larger displacement motors. atleast this is from what i have noticed.

<small>[ April 17, 2003, 09:12 PM: Message edited by: Gangly ]</small>

trax

iTrader: (2)

I'm curious about this too... I think the shop where I got my heads done through charged about $150 for intake porting. I didn't go with it because nobody ever talked about definite gains from it. Does it even help when you're a stock bottom end N/A ?

Serial Thriller

Your gains would be very minimal for $150. I've talked to several shops that deal with LT1s (some sponsors here) and gotten the same info that Gangly posted. As long as you're using LT1 heads, the intake isn't much of a restriction. Yes, you should probably port match it for that extra little bit if your heads are ported, but it won't make a huge difference.
Surprisingly, several of those shops said that the LT4 intake does benefit quite a bit from porting if you're using that setup.