C4 TPI Bolts
Thread Starter
1st Gear
Joined: Nov 2020
Posts: 1
Likes: 0
From: Oklahoma
C4 TPI Bolts
I just recently picked up a 1990 C4 L98 Vette, clean car, 65k miles, the previous owner took the motor apart due to a dry rotted head gaskets I’ve got it all back together except TPI system, some bolts for the system, are missing; can I use a standard bolt from a part store in replacement of the missing hardware, or does it need to be a specific product??
thanks In advance
thanks In advance
Safety Car
Joined: Aug 2009
Posts: 3,751
Likes: 276
From: Melbourne, Victoria, Australia
I just recently picked up a 1990 C4 L98 Vette, clean car, 65k miles, the previous owner took the motor apart due to a dry rotted head gaskets I’ve got it all back together except TPI system, some bolts for the system, are missing; can I use a standard bolt from a part store in replacement of the missing hardware, or does it need to be a specific product??
thanks In advance
thanks In advance
maybe Allen key type bolts will look better?
You may be able to get a set of second hand intake runner bolts on ebay? Or a car wrecking yard.
Good luck
Oh tip ... before bolting the intake runners up, test the fuel pressure make sure none are leaking.
the o rings can easily leak.
simple to rectify when the fuel rail is bolted in place, without intake runners bolted together.
Gerard
Last edited by gerardvg; Nov 27, 2020 at 01:11 AM.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
For runners, plenum and intake I prefer OEM style bolts.
You might see if a good local hardware shop can custom order the bolts needed, though e-bay or used parts vendor would be a quicker path.
You might see if a good local hardware shop can custom order the bolts needed, though e-bay or used parts vendor would be a quicker path.
Max G’s
Joined: Nov 2008
Posts: 2,751
Likes: 79
From: Monroe OH
NCM Sinkhole Donor
There are fastener companies out there you can get the bolts from. Best I remember on the intake manifold bolts is there were two different sizes (length) used. Hoefully you have all to reference.
Good Luck
Good Luck
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Smaller the head of the bolt the better...I found an adapter to 1.4" and a lfex extension makes starting some of them easier.
NEver liked the factory ones but under the runners theres hardly any room.
NEver liked the factory ones but under the runners theres hardly any room.
