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12-29-2020, 12:16 PM | #1 |
Registered User
Join Date: Oct 2018
Location: DeKalb, IL
Posts: 154
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Re: Flexplate rabbit hole
also, do yourself a big favor and use genuine GM starter bolts with the knurled shank and washer heads. the starter holes in the block are 3/8-16 with a .375 c'bore above it for that knurl. that knurl/c'bore combo is there to act as a dowel pin to properly locate and hold the starter in position. that is especially true if you use a mini starter, which a lot of us use with headers, etc. that starter has a 10mm hole thru it above a 3/8-16 thread on the bottom. the correct bolts are cheap at your GM dealer, last time i bought them it was $8 for 5 of them. i was breaking bolts on the 409 in my streetrod until i figured this out. good luck.
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12-29-2020, 02:05 PM | #2 | |
Registered User
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 15,379
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Re: Flexplate rabbit hole
Quote:
This is an absolute must.
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Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around. |
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