Tpi intake manifold bolts
03-31-2019, 01:00 PM
#3
Re: Tpi intake manifold bolts
Hardware store, if you don't need the stock style. Some of the repro houses have bolt sets that sorta look about right. Aftermarket sources sell all kinds of dress up bolt sets in stainless chromed titanium. Pretty sure ARP sells a set too.
Bolt into the heads are 3/8-16. Runner/fuel rail/throttlebody/etc bolts are mostly various lengths of M8-1.25. Throttle cable bracket and MAP sensor bracket bolts are an M6 something or other. Rule of thumb, if the bolt threads into the engine it's SAE, if it threads into the intake, trans, accessories, body, etc it's metric.
Bolt into the heads are 3/8-16. Runner/fuel rail/throttlebody/etc bolts are mostly various lengths of M8-1.25. Throttle cable bracket and MAP sensor bracket bolts are an M6 something or other. Rule of thumb, if the bolt threads into the engine it's SAE, if it threads into the intake, trans, accessories, body, etc it's metric.
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Gizmoz28 (10-26-2020)
04-01-2019, 12:34 PM
#5
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Car: 1991 Z28
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3:42 Auburn
Re: Tpi intake manifold bolts
Rule of thumb, if the bolt threads into the engine it's SAE, if it threads into the intake, trans, accessories, body, etc it's metric.
Thanks for the info Drew, this has been driving me nuts for awhile now.
Thanks for the info Drew, this has been driving me nuts for awhile now.
11-04-2020, 08:35 PM
#7
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