88 TPI Intake Torque Specs
Thread Starter
8th Gear
Joined: Jan 2007
Posts: 8
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88 TPI Intake Torque Specs
Does anyone have the correct torque specs for the intake manifold bolts on a 1988 TPI engine? I have come across some conflicting numbers and just want to torque them correctly before I install the plenum and the runners. As always...thanking you all in advance for your help!!!
HOW 'BOUT THEM COLTS...
JOHN
HOW 'BOUT THEM COLTS...
JOHN
Team Owner
Joined: Jan 2003
Posts: 20,322
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From: Summerland B.C. Canada
Melting Slicks
Joined: Apr 2002
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From: St. Charles, MO Route 66 Corvette Club
Hogg: A few years ago I responded to a thread in the C4 Parts for Sale section. It seems that someone had sold their 89 Corvette and they has a stack of GM service bulletins they were offering for free. I ended up with the package and bulletin number 89-22-6E dated 11/1/1988 deals with your question of torque spec on the plenum runners. The "revised" spec given is 25 lb.ft or 34 N.m. This applies to both the 350 and 305 engines.
Thread Starter
8th Gear
Joined: Jan 2007
Posts: 8
Likes: 0
Thank you all very much...you have been very helpful as usual. I hope to finsh this project this weekend then move on to the next. It is always something isn't it...But we still love it 
Think Spring!!!
JOHN
Think Spring!!!JOHN
