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TPI intake bolt threads

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Old 03-19-2001, 04:01 PM
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jmd
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Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
TPI intake bolt threads

okay, after having it bead blasted and it being full of beads, I need to clean up the bolt holes in the runners and plenum and base.

Problem? They're 5/16 - 20 thread. Nobody in town carried or can order these (and I do know who to call) Anyone who has taps has 5/16 - 18 (standard coarse) or 5/16 - 24 (fine) and I really don't feel like re-engineering the bolts setup in the intake.

|-|elp......

[This message has been edited by jmd (edited March 19, 2001).]
Old 03-19-2001, 05:45 PM
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jmd
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What size thread are the runner bolts?
Old 03-19-2001, 06:05 PM
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They arent 5/16, they're metric. Its 8mm, I think 8mmx1.0
Old 03-20-2001, 08:07 PM
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Axle/Gears: 3.45, 3.73
Yes they are metric. Take an existing bolt to your local tool shop and have them find a tap for you.

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Old 03-20-2001, 08:22 PM
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Just take a bolt down to NAPA, they can hook you up.
Old 03-20-2001, 10:43 PM
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jmd
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Car: `86 SS / `87 SS
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Transmission: `95 T56 \ `88 200-4R
thanks guys

------------------
jmd
L69 / T5

Last edited by jmd; 02-18-2014 at 09:49 PM.
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