Question about heat and cam bearings - The 1947 - Present Chevrolet & GMC Truck Message Board Network

raveer2000 · 01-08-2010, 09:53 PM

I just picked up the block (SBC) from the machine shop and had it bored, line honed, 0 decked, and had new cam bearings installed.
The owner has this idea of powdercoating the block. The machinist says the 400 degree heat could melt the new cam bearings. Anyone have any experience with this. Will 400 degrees for 20 mins hurt the new bearings. I think the machinist was more concerned with powder getting on the freshly machined surfaces, which the powder coater has assured me it won't happen. Any suggestions would be a great help

cableguy0 · 01-08-2010, 10:27 PM

Just to be safe to prevent warpage on the thinner materials i would make sure the freeze plugs and cam bearings werent in the block when it was heated. I dont know if it would actually melt the bearings but i wouldnt trust using them afterward

shortbed70 · 01-08-2010, 10:29 PM

I wouldn't tempt it. Their cheap.

jgh64pkup · 01-09-2010, 12:01 AM

i agree i would pull them out

Dragsterbus · 01-09-2010, 07:15 PM

I'd paint it , all the race engine builders i know paint them,

raveer2000 · 01-09-2010, 07:51 PM

Quote:

Originally Posted by Dragsterbus

I'd paint it , all the race engine builders i know paint them,

Had this wild idea about powder coating the block in the same chrome that we did on the tunnel ram. We will probably just paint it back base coat/clear coat with the same red that is on the truck. bc/cc looks great on an engine. Held up really well too.

01-08-2010, 09:53 PM	#1
raveer2000 Registered User Join Date: Dec 2009 Location: South MS Posts: 90	Question about heat and cam bearings I just picked up the block (SBC) from the machine shop and had it bored, line honed, 0 decked, and had new cam bearings installed. The owner has this idea of powdercoating the block. The machinist says the 400 degree heat could melt the new cam bearings. Anyone have any experience with this. Will 400 degrees for 20 mins hurt the new bearings. I think the machinist was more concerned with powder getting on the freshly machined surfaces, which the powder coater has assured me it won't happen. Any suggestions would be a great help __________________ 1972 K5 CST. Work in progress. 408CI 1980 K10

01-08-2010, 10:27 PM	#2
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,948	Re: Question about heat and cam bearings Just to be safe to prevent warpage on the thinner materials i would make sure the freeze plugs and cam bearings werent in the block when it was heated. I dont know if it would actually melt the bearings but i wouldnt trust using them afterward __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

01-08-2010, 10:29 PM	#3
shortbed70 Registered User Join Date: Mar 2002 Location: Forney TX Posts: 4,512	Re: Question about heat and cam bearings I wouldn't tempt it. Their cheap. __________________ Troy 1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884 Big Red Dog build http://67-72chevytrucks.com/vboard/s...d.php?t=572274

01-09-2010, 12:01 AM	#4
jgh64pkup Sunburst C10!!! Join Date: Jan 2009 Location: Texas Posts: 2,560	Re: Question about heat and cam bearings i agree i would pull them out __________________ Gage 1967 C10 Shortbed Stepside

01-09-2010, 07:15 PM	#5
Dragsterbus Registered User Join Date: Aug 2009 Location: England (UK) Posts: 113	Re: Question about heat and cam bearings I'd paint it , all the race engine builders i know paint them, __________________ Here's the new video of the pro mod body i'm building http://www.youtube.com/watch?v=obJspWfEttc http://www.facebook.com/#/pages/The-...9609586?ref=ts The All Alone, Meet and Greet 2010, Going International. Starting July 3rd. 00:00hrs. where ever it is in the world where you are.. Looking to break the most members online record during the 24hr. marathon. Please help to promote this event. Edit Signature in your Control Panel to include..... "All Alone Meet & Greet 2010." http://67-72chevytrucks.com/vboard/s...d.php?t=393754

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