so I wanna start to plan my build for my LT1 but i want some input from others; maybe some money saving tips or mods that are a waste of money.

what my plan is:

edelbrock lt4 intake or port and polish the stock intake
dart 190cc or 215 cc heads
comp cam 280xfi Duration 280/288 lift .576/.570
K&N CAI
PCMforless tuning
pacesetter LT ORY to magnaflow of gmmg
+ what ever is needed to support these mods engine wise

i hope later to make this a supercharged 383 LT4 (~580 rwhp/ ~540 tq) but for right now pretty much just a beefy LT4.

all ran through a tremec t56
*i already have a thread working on the rear end*

What size injectors should i use? i dont need anything crazy.

my main goal is to get the most hp from a top end swap before starting to s/c and go to a 383.

 

Not sure the intake has proven itself to be worth the money. Advanced Inductions has proven they can make killer #'s out of there 200cc stock cnc ported head. Might want to look into that.

 

Rule #1 - build it once. A n/a motor and a boosted motor require two different approaches. Save your money until you have the time to do it RIGHT. Hopefully you aren't planning on doing all of this on the stock bottom end, right?

The Edelbrock stuff is OVERPRICED - nothing that worked stock casting parts (both intake and heads) can't accomplish. I suggest you look at some other people who have boosted LT1s and see what they've done.

 

well today i was at the telegraph cruise which is a mini woodward and i met a guy with a 97 Z and he said he was throwing down 414 hp at the wheels and that was more than he really wanted. So i guess my real question is what can i do to get my lt1 to get to the 350-380 rwhp range? thanks for the tip about the edelbrock parts

 

Ported factory heads, matching cam and upgraded valve train, long tube headers, large catback or duals, larger throttle body, larger injectors, and a good PCM tune will get you easilly to 400rwHP. There are a couple of shops that specialize in the LTx heads/cam packages. Take a look at both of them:

http://www.elliottsportworks.com/

http://www.advancedinduction.com/LTX/AiLTxMain.php

Now you have to consider upgrading the drivetrain and the suspension to handle the power.

 

People make that kind of power all the time on NA cars. Your looking easy 5-10gs more if you want a supercharger. Honestly this all comes down to money, so how much are you ready to spend. Its not really a good deal to build now and a put a blower on later. You need to set up your cam and motor for a boosted car. So you need to set a number you can spend before you plan on anything

 

i think im just going to go with a n/a lt1...im just afraid ill do these mods and end up wanting more power