LT1-LT4 Modifications 1993-97 Gen II Small Block V8

383 supercharger he

Thread Tools
 
Search this Thread
 
Old Apr 8, 2018 | 08:51 AM
  #1  
Sstanley89's Avatar
Thread Starter
Teching In
 
Joined: May 2017
Posts: 12
Likes: 0
From: Park hill, ok
Default 383 supercharger he

Going procharged real soon, got the kit today, Lloyd will be doing a custom grind boost cam for me. My engine specs are as followed and I’ll be running around 9.5-9.6:1 compression.

Specs on the engine are 383ci
Lt1 block bored .30 over and zero decked
3.750 stroker nodular iron scat crank
Scat 5.7 forged I beam rods
Cp Carrillo -17cc dished forges pistons
Cometic .092 head gaskets to bring compression down
Lloyd Elliot custom grind cam
Stock lt1 heads that have been gasket matched and polished
Lunati 640. Lift double valve springs
Ls7 lifters
Trick flow push rods
Comp 1.6 roller rockers
Long tube headers
Dual exhaust with x pipe
52mm ligenfelter throttle body

Procharger came with a 12lb pulley

Now for the questions, as the motor sits right now n/a it’s right about 10:8:1 compression, I’ve heard some people say a thicker head gasket is not a bad thing, and some people say don’t do it? I’ve already ordered cometic.092 gaskets which should bring the compression down to 9:5:1-9:6:1. Will this be ok at least till the winter when I can put some better heads on it.

What spark plugs would work best, I’ve been told ngk br7ef?

motor has arp head bolts, should I put in arp head studs? Or will the bolts be strong enough?

and is a meth kit a must or can I get away without for a few months?

solomon will probably be doing my tuning, unless anyone else recommends someone else for boost applications. He has done both of my n/a builds and seems to do a great job
Reply
Old Apr 11, 2018 | 06:48 PM
  #2  
97Z28SS's Avatar
TECH Fanatic
iTrader: (5)
 
Joined: May 2009
Posts: 1,290
Likes: 3
Default

Buy a good 4340 forged crank for your engine or you will be building a new one soon and you don't need to drop the compression to only run 12# of boost. You also should pull the engine and re-gap the piston rings wider for boost or you risk lifting a ringland. Other than that you should have a powerful setup.

I'd also send the heads to Lloyd and get the LE2 or LE3 head porting to really wake up your engine, which Procharger did you get the new D1X?
Reply




All times are GMT -5. The time now is 01:50 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE