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Old 09-01-2020, 10:17 AM   #8
Steeveedee
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Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,946
Re: Hot Weather, Fuel Injection & 383 Stroker

Quote:
Originally Posted by my67c20 View Post
I believe the thermostat to be a standard 180, only because when i bought it I never asked for anything special. The radiator is a 1967 - 1972 Chevy Truck Alum Rad - For SBC/BBC - 2-rows of 1" Tubes, Dual 11" HP fans, Alum- 4 Row Mounts-AUTO-trans. The temp does not change, based on gauge at idle or in traffic.
Thanks for the answers! That set up should run cooler than that, imo. I forgot to ask, and don't see it above. Do you have AC and is it running when the engine gets this hot? 200 isn't bad if the AC is running.

I went through my cooling system and the thing that finally cured the problem (biggest effect) was to put in a high-flow thermostat.

I'm not an expert on strokers. I'm throwing this question out to those more knowledgeable than I. Do they require the heads from a 400? I think the 383 uses a 350 block, so maybe not? The 400 SBC heads and block are drilled for steam holes to aid in cooling. That I do know.

I'd add the heat insulating spacer. It helped the carburetor (E-brock 1406) I had on my Skylark. I had to seal it up with shellac, though as it leaked. Something to watch out for.
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'70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper

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