Series I head questions... - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Thread Tools Search this Thread
Old 03-23-2005, 03:04 AM   #1
Junior Member
Thread Starter
Join Date: Mar 2005
Location: Muncie IN
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Big Bad Wolf is on a distinguished road
Default Series I head questions...

Long time reader, first time poster....
Anyways I have a question concering head switching. I currently have a Series I '92 SE. Everythign runs fine on it, but I wanted to see abotu porting and polishing the heads for better flow and reworkign the valve train. I dont wanan mess with my good origional heads still on the car, so I was thinkign about buying some junker heads to work on (in case I F*** somehting up, I dont want my ride a paperweight)
Anyways, the local junker down the street has a few Series I blocks with heads, but only one from a 92. The rest seem to be from 93-94 models. What I was wondering is, if a head form a 93 or 94 would fit up on a 92 block. I obvisouly know that a Series II head wont fit due to different collant passages and such, but I am unsure abotu different years of the Series I. If it is possible to swap an older model head onto it, is there a difference in performance? I would like to upgrade the rockers and springs, and was hopign that those compants are better then the stock 92?
Any comemnts would be greatly appreciated!! Thanks!
Big Bad Wolf is offline   Reply With Quote
Old 03-23-2005, 04:06 AM   #2
Senior Member
Certified GM nut
Join Date: Feb 2003
Location: Georgia
Posts: 2,095
Thanks: 0
Thanked 0 Times in 0 Posts
DrJay is on a distinguished road

It would actually be a benefit to switch to '93 heads, and yes by all accounts they should just bolt right up. The '93 was the first year to get roller fulcrum rockers. Not a major improvement, but better. I don't think the springs were any better, but *shameless plug* I sell springs, rockers, and cams should the need arise.
DrJay is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Left head vs. right head? eazhar 1992-1999 3 04-09-2012 09:59 AM
(warped head, new car hunt) head gasket on 88 voyager (2.5L) harofreak00 Lounge 47 02-01-2007 02:10 AM
Questions,Questions,Questions.......... dbeast420 Lounge 2 05-06-2006 03:49 AM
Questions questions questions big_boss2010 1992-1999 2 09-06-2003 01:41 PM
New Head Unit...questions jasons92bonne Audio (and aftermarket electronics) 9 05-08-2003 02:31 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 02:50 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.