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#1 |
Senior Member
Join Date: Feb 2006
Location: Las Vegas
Posts: 1,378
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Spark Plug Heat Shields?
Today I was trying to put the stock heat shields in a 72 and only one did not lined up where it bolts. It's on the passenger side where the temperature sending unit goes. Iv'e seen here a few 350's engines with that hole where the shield bolts to. On mine, that mounting hole is not there. It's solid!! Only the one next to the one that's supposed to be there to mount the shield. This is a crate 350 engine that I bought new in my local chevy dealer 6 years ago. Is there something wrong on this crate motor? Why isn't that hole there? Here's a pic. Thanks!
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1972 Chevrolet Blazer 4x4 (Almost done stay tuned) 1970 Chevrolet Pickup Longhorn CST/20 (SOLD) |
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#2 |
Registered User
Join Date: Jul 2011
Location: vacaville ca
Posts: 1,304
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Re: Spark Plug Heat Shields?
Mine has it...........Hmmm
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04 CHEVY LLY LS DURAMAX 4WD. MODS TO FOLLOW, EFI LIVE, BUILT TRANS, LBZ MP, LIFT PUMP SOLD 1972 chevy c10 |
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#3 |
Registered User
Join Date: Aug 2005
Location: Brentwood, TN
Posts: 23
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Re: Spark Plug Heat Shields?
I don't think they machine that hole in the newer castings. The boss is there with the extra meat, but they just don't bother. I worked in a machine shop several years ago now and remember having to make the holes for the heat shield for certain applications. Not much help, but you can drill and tap the hole yourself safely.
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1970 CST-10 350/350 turbo 1978 Camaro Z-28 Clone 350/Saginaw 4-speed |
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#4 |
Senior Member
Join Date: Feb 2006
Location: Las Vegas
Posts: 1,378
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Re: Spark Plug Heat Shields?
Thanks! How would I make the thread if I make that extra hole?
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1972 Chevrolet Blazer 4x4 (Almost done stay tuned) 1970 Chevrolet Pickup Longhorn CST/20 (SOLD) |
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#5 | |
Chemist under the hood...
Join Date: Apr 2009
Location: Fort Erie,ON, Canada
Posts: 617
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Re: Spark Plug Heat Shields?
Quote:
I've only used my set about 4 times a year but when I've needed it, it's usually on a weekend.
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Current fleet: 2013 GMC Sierra, 5.3L, 4x4 1988 GMC Sierra, 305, Auto 1984 Jeep Grand Wagoneer, 360 V8 1997 VW Cabrio, 2.0L 2017 Toyota Rav4, 2.5L Stuff I wish I still had: 2013 Toyota Matrix [RIP] 1967 GMC 910 Fleetside, 283 V8 [1st Love-SOLD] 1987 Jeep Cherokee Laredo 4X4, 4.0 I-6 [SOLD} 1994 Chevrolet Caprice Classic, 5.7LV8 [SOLD] 1995 Chevrolet Astro AWD, 4.3L V6 (RIP) 1998 Chevrolet Suburban 4x4, 5.7L V8 [SOLD] |
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