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

lt1 head ???

Thread Tools
 
Search this Thread
 
Old Jul 17, 2010 | 09:15 PM
  #1  
snk-huntr's Avatar
Thread Starter
TECH Enthusiast
iTrader: (2)
 
Joined: Dec 2006
Posts: 537
Likes: 0
Default lt1 head ???

are these heads to big for a 355 with hotcam and 1.7 rr,s, there cnc ported the intake port measured between 195 to 200 cc,s 2inch intake valve 1.6 I believe on the exaust valve , the guy we bought them from had them on a 383 with a big cam and swapped them out for afr,s , reason Im askin I seem to have lost low end power and is slugish compared to before the swap I would hate to have to swap back on the stockers but I may have to ,,,,,,,,
Reply
Old Jul 17, 2010 | 11:33 PM
  #2  
brucer's Avatar
TECH Enthusiast
 
Joined: Dec 2009
Posts: 529
Likes: 0
Default

did you get a tune after you swapped heads?
Reply
Old Jul 17, 2010 | 11:47 PM
  #3  
gregrob's Avatar
TECH Senior Member
iTrader: (8)
 
Joined: Sep 2008
Posts: 5,130
Likes: 4
From: 6,000+ feet
Default

Lol
Reply
Old Jul 18, 2010 | 01:14 AM
  #4  
hitmanws6's Avatar
TECH Veteran
iTrader: (20)
 
Joined: Dec 2008
Posts: 4,041
Likes: 5
From: Orange, CA
Default

Those arent outrageous heads, as stated were you tuned for it? The rule of heads is the better the head, the less cam you have to run. The worse the heads the more cam you have to run. Id look into the tune. people use the hotcam in 383s with heads like that with no problems, so I doubt a 355 will have any issues
Reply
Old Jul 18, 2010 | 02:45 AM
  #5  
snk-huntr's Avatar
Thread Starter
TECH Enthusiast
iTrader: (2)
 
Joined: Dec 2006
Posts: 537
Likes: 0
Default

Originally Posted by hitmanws6
Those arent outrageous heads, as stated were you tuned for it? The rule of heads is the better the head, the less cam you have to run. The worse the heads the more cam you have to run. Id look into the tune. people use the hotcam in 383s with heads like that with no problems, so I doubt a 355 will have any issues
fixed ,, intake gasket leak
Reply
Old Jul 18, 2010 | 03:42 PM
  #6  
Slow94Formula's Avatar
8 Second Club
iTrader: (18)
 
Joined: Feb 2008
Posts: 872
Likes: 5
From: Rochester, MN
Default

Originally Posted by brucer
did you get a tune after you swapped heads?
Originally Posted by gregrob
Lol
Reply




All times are GMT -5. The time now is 02:55 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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