Gain extra benefits by becoming a Supporting Member Click here find out how!
Silver
Gold ***Platinum***
Clarke57 (7)stefanPWagonsouth (2)74camaro (4)tri5ss (8)
Dadson 66project KeeferZJrMYFIRST64 (4) V8 supercars66JR
Don57 (9)
timmyg65Vaughn (13)RumblingV8 (2)
Monty56 (11)59fins (13)feffin (8)DonB51Chev (3)
MAC MAN
WagonCrazy (8)
Kevin Anderson (9)
Nailheadv8 (9)
Classic Performance Products
Ciadella Interiors American Auto Wire Art Morrison.com
Exile® Battery Keeper™ 6/12 volt charger w/ LED battery monitor
Low priced Genuine GM Auto PartsHarbor Freight
Hellwig Products IncPerformance Rod & Custom
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy

  >> Switch to Mobile Version <<

Recent Hot Topics
Current Quote
"It only took me a day to realize i got really lucky finding the site and taking the time to sign up!"
~ New Member
Recent Topics
Join the Community today







Username Post: Specs for 1990 454 SS engine        (Topic#207199)
docpete 
Senior Member
Posts: 422
docpete
Loc: Illinois
Reg: 12-20-04
01-12-09 02:18 PM - Post#1605330    

Anyone know where I can find the specs for the 454 SS engine for 1990? I would like to know comp. ratio, cam duration/lift, head specs (valve size, chamber size) etc??

Thanks.

Pete

 
Low priced Genuine GM Auto Parts
ww454ss 
Forum Newbie
Posts: 50

Reg: 01-01-09
01-12-09 03:29 PM - Post#1605377    
    In response to docpete

www.454ss.com Should have some info. Its a mark IV. The compression ratio is I think a low 7:1. like 7.2:1. I have a 454ss and the heads suck. The bottom end is great for boost because of the low compression ratio. I am not sure if this is true but, on other forums I have heard of guys making 600-800 rwhp on the stock bottom end with twin turbos running 20+ lbs of boost. Of course I dont think those guys are worried about longevity. I know alot of us ss guys are running superchargers and running 12's and 13's on around 7lbs of boost. My 454ss makes great power and just has a set of headers. The motor is all about torque.

 
FINMAN 
Frequent Contributor
Posts: 1305
FINMAN
Loc: Burlington , Mass
Reg: 03-01-05
01-12-09 06:17 PM - Post#1605479    
    In response to ww454ss

I dont remeber what specs this guy has but what an awesome truck.

Link


 
ww454ss 
Forum Newbie
Posts: 50

Reg: 01-01-09
01-13-09 03:21 PM - Post#1606098    
    In response to FINMAN

Yah I love my 454ss. Its very impressive for a 19 year old truck. Mine was a little beat up and mal-nurished but it still is a beast. The first day I got it I blew the doors off a 1996 z28 and a 1968 mustang. It will chirp the tires from 2nd to 3rd. The torque is awesome.

 
Low priced Genuine GM Auto Parts
Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

8826 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.971 seconds.   Total Queries: 27   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 10:54 PM
Top