Vortec head questions
Thread Starter
Melting Slicks
Joined: Jul 2000
Posts: 2,112
Likes: 2
From: Peoria IL
Vortec head questions
What year did they start offering them in the pickups? 95 or 96? What about the vans and SUVs? Is there any truth to the rumor that the later castings are better, thicker in some places or something?
Is there any chance that I would be able to get a good long block from the junk yard for a decent price or am I dreaming?
Is there any chance that I would be able to get a good long block from the junk yard for a decent price or am I dreaming?
One gear at a time
Joined: Aug 2003
Posts: 5,232
Likes: 24
CI 8-9-10 Veteran
St. Jude Donor '07-'08-'09
Re: Vortec head questions (korvetkeith)
The vortec heads were 1996 and up. Make sure you get 350 heads; you do not want the 305 heads. There probably wouldn't be a noticeable difference between model years and the 062 or 906 castings. If running over .450 lift besure to check your retainer to guide clearance.
FWIW, GM is releasing two new vortec cast iron heads. I do not have the P/Ns handy, but one is 170cc with larger vaves and the other comes in at 200CC.
FWIW, GM is releasing two new vortec cast iron heads. I do not have the P/Ns handy, but one is 170cc with larger vaves and the other comes in at 200CC.
One gear at a time
Joined: Aug 2003
Posts: 5,232
Likes: 24
CI 8-9-10 Veteran
St. Jude Donor '07-'08-'09
Re: Vortec head questions (GeoffSchultz)
Geoff, sorry for not getting back to you sooner. I've been out of town and haven't checkd-in on the forum. I believe I saw the write-up on the new heads in Corvette Fever in the new products section. However, I just looked and couldn't find the magazine. I would call the guys at Scoggin Dickey and see if they have any information on the new heads. HTH Wes
One gear at a time
Joined: Aug 2003
Posts: 5,232
Likes: 24
CI 8-9-10 Veteran
St. Jude Donor '07-'08-'09
Re: Vortec head questions (GeoffSchultz)
The July 2004 Corvette Enthusiast has a short write-up on the two new heads on page 71.P/N 25534351 175CC I, 64 CC E ports, 2.00 I and 1.55 E valves. P/N 25534371 has 206 CC I and 77 CC E ports, but doesn't list valve size. The article says the new heads are now available. HTH Wes
Instructor
Joined: Dec 2002
Posts: 140
Likes: 0
From: Houston TX
Re: Vortec head questions (korvetkeith)
Thanks wes, I'll try to get ahold of that magazine to read up on em.
Do you by any change know if the heads will have stonger springs (ones that can handle > .450" lift) so one could avoid the cost/hassle of getting them replaced?
Thanks again.
Do you by any change know if the heads will have stonger springs (ones that can handle > .450" lift) so one could avoid the cost/hassle of getting them replaced?
Thanks again.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
One gear at a time
Joined: Aug 2003
Posts: 5,232
Likes: 24
CI 8-9-10 Veteran
St. Jude Donor '07-'08-'09
Re: Vortec head questions (GeoffSchultz)
Geoff, I believe the heads have all the mods for the high lift cams already done. I would contact one of the big GM Performance Parts dealers, such as http://www.sdpc2000.com and ask about the heads, availability, specs, cost, etc. Good luck, Wes
