Go Back   CamaroZ28.Com Message Board > 1967-2002 Powertrain Discussion > LT1 Based Engine Tech
Sign in using an external account
Register Forgot Password?

Reply Post New Thread
LinkBack Thread Tools Search this Thread Display Modes
Old 08-17-2004, 10:17 PM   #1
Registered User
Join Date: Sep 2003
Location: Boerne
Posts: 546
Send a message via AIM to 30thCamaroZ
Most horsepower an LT1 block can handle?

What is the most horsepower than an LT1 block has taken and how long did it last? I have a very stout little short block but now I am thinking of changing up a few things and going a differerent route "cought91cough" and just wondering what these blocks will take. It's half block filled and 4 bolt main. Eagle 4340 Crank, Oliver I beams, Diamond Pistons but I'd probably have to get billet rods/pistons and I don't know about the crank.
This ad is not displayed to registered members.
Register your free account today and become a member on CamaroZ28.com!
97 Z28 410ci twin T70's, th350, 9 inch- SOLD
97 Z28 M6 intake, lt's/exhaust and nitrous- SOLD
02 Gixxer 600 filter/exhaust/sprockets- SOLD
03 Gixxer 1000 filter/exhaust/PCIII- SOLD
95 GT H/C/I, exhaust, gears and too much other sh*t
30thCamaroZ is offline   Reply With Quote
Old 08-17-2004, 10:19 PM   #2
Registered User
Spinner's Avatar
Join Date: Jul 2003
Location: Fort Benning, GA
Posts: 2,947
Send a message via AIM to Spinner
Re: Most horsepower an LT1 block can handle?

Lots of turbo cars pushing 1200+hp with no major issues.
Burgundy LT1 Z28/SS Clone. Jet-Hot Long Tubes and all the bolt-ons.
233/239 .569 .577 in the works
Spinner is offline   Reply With Quote
Old 08-18-2004, 03:41 PM   #3
Super Moderator
Injuneer's Avatar
Join Date: Nov 1998
Location: Hell was full so they sent me to NJ
Posts: 42,157
Re: Most horsepower an LT1 block can handle?

I've seen a factory 4-bolt LT1 block make 1,125flywheel HP, running about 20# of boost. Since it was an S/C, the power at the crank was probably over 1,250HP. There was no block fill used. After pushing a 3,900# 30th SS convertible to 9.03 @ 155MPH, the block was sold to another person, who is using for a high HP nitrous motor. It was in excellent condition. But the 30th SS was going for 1,325flywheelHP, and they didn't think the stock block would take it, so they switched to a Dart Iron Eagle. Car has now run 8.6@160MPH with that engine.

I also believe Madman claimed 1,200HP on his ATI S/C'd LT1, another car running 9.11@155MPH.

94 Formula A3+1: 381ci all-forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / Comp Cams custom solid roller / TH400 + GearVendors OD / Strange 12-bolt - 4.11's / 300-shot N2O / Spohn suspension / 6-pt roll bar with integrated SFC's / AutoMeter instrumentation / MoTeC M48Pro engine management system / a few other odds 'n ends. 800HP/800LB-FT at the flywheel.
Injuneer is offline   Reply With Quote
Old 08-18-2004, 03:41 PM
Reply Post New Thread

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 03:46 PM.

Copyright © 1996-2013 CamaroZ28.Com. All rights reserved.

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.