L98 Plenum and Runner help
Thread Starter
Burning Brakes
Joined: Jul 2012
Posts: 899
Likes: 91
From: Poughkeepsie, NY
L98 Plenum and Runner help
Looking to pick up another set of runners and plenum to polish.
Are they interchangeable? I have a 1989 with casting #10108468.
Ebay has plenty available, with casting #s 10077151 and 14081006 but not mine.
What are the differences?
Are they interchangeable? I have a 1989 with casting #10108468.
Ebay has plenty available, with casting #s 10077151 and 14081006 but not mine.
What are the differences?
Last edited by 89dd; Jun 28, 2015 at 05:14 PM.
Race Director
Joined: Feb 2003
Posts: 16,475
Likes: 270
From: Kingman AZ
Cruise-In VII Veteran
Cruise-In VIII
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
Pretty good article from Hot Rod Magazine. A Google search will bring you much more.
http://www.hotrod.com/how-to/engine/...lassic-chevys/
http://www.hotrod.com/how-to/engine/...lassic-chevys/
Safety Car
Joined: Jan 2014
Posts: 4,017
Likes: 492
From: Poughkeepsie New York
Race Director
Joined: Aug 2000
Posts: 11,470
Likes: 764
Pretty good article from Hot Rod Magazine. A Google search will bring you much more.
http://www.hotrod.com/how-to/engine/...lassic-chevys/
http://www.hotrod.com/how-to/engine/...lassic-chevys/
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 413
From: WV
If I'm remembering correctly the 89 plenum was a 1 year only item....85-88 had cold start injector, 90-91 was speed density..I believe you can plug the cold start injector hole to use it on the 89, but you may want to check first to make sure..WW
Last edited by WW7; Jun 28, 2015 at 08:11 AM.
Instructor
Joined: Jan 2015
Posts: 207
Likes: 1
Just FYI. I just got done polishing my 86' Plenum and runners. I made the mistake of sending the stock Magnesium valve covers out as well. If the 89's are Magnesium as well, don't bother! The Plenum and runners look fantastic. But the Magnesium turns real quick. PITA. I just bought a set of quality covers to replace them.
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
Thread Starter
Burning Brakes
Joined: Jul 2012
Posts: 899
Likes: 91
From: Poughkeepsie, NY
Just FYI. I just got done polishing my 86' Plenum and runners. I made the mistake of sending the stock Magnesium valve covers out as well. If the 89's are Magnesium as well, don't bother! The Plenum and runners look fantastic. But the Magnesium turns real quick. PITA. I just bought a set of quality covers to replace them.
Look smoking hot, but now the runners and plenum need some love.
Wanted to pick up another set so I can still drive the car then bolt on the polished set when finished.
PS
Thanks to corvetteronw and Dt86 for the helpful articles.