Factory Valve cover Coating - The 1947 - Present Chevrolet & GMC Truck Message Board Network

HvyChevy454 · 09-06-2002, 05:19 PM

What is a good way other than scrapeing and scratching the aluminum to get the plastic like coat off my factory 91 valve covers? It is chipping b/c its lie some kinda plastic deal and i wanna put them back on the motor till i get roller rockers. I was gonna strip and powdercoat em.

GMC1967 · 09-06-2002, 09:18 PM

I'm not sure but I think that maybe letting the valve covers sit in some muriatic acid would do the trick. Let them sit a while and then scrapping off would be a snap, but make sure to be safe with the acid, and don't just dump it in the yard/drain when you're done!

09-06-2002, 05:19 PM	#1
HvyChevy454 Slowly getting CRSS... Join Date: Jul 2001 Location: Lutz, Florida Posts: 656	Factory Valve cover Coating What is a good way other than scrapeing and scratching the aluminum to get the plastic like coat off my factory 91 valve covers? It is chipping b/c its lie some kinda plastic deal and i wanna put them back on the motor till i get roller rockers. I was gonna strip and powdercoat em. __________________ -Nic Lutz, Fl My Team Website The Heavy Chevy Website ------------------ 72 Cheyenne 10 LWB GM 12-bolt 3.08 w/ Auburn Posi 91 454 Edel Performer RPM Intake 750 cfm carb Comp Cam 268/.495 Hedman Headers Dual 3'' Exhaust 71 Cheyenne 20 4x4 Fact. A/C PS PB Tilt Currently in the works... Speak Softly and Carry A Big Block... There is No replacement for Displacement... "If everything seems under control, you're just not going fast enough." - Mario Andretti

09-06-2002, 09:18 PM	#2
GMC1967 Registered User Join Date: Jan 2002 Location: South Deerfield, MA Posts: 162	I'm not sure but I think that maybe letting the valve covers sit in some muriatic acid would do the trick. Let them sit a while and then scrapping off would be a snap, but make sure to be safe with the acid, and don't just dump it in the yard/drain when you're done! __________________ 1967 GMC Custom 8ft Fleetside 292 L6, 4spd. 1973 Oldsmobile Delta 88 Convertible 455, TH 400 1969 F#$% Bronco 302, 3spd 4.11's 1958 Oldsmobile Super 88 Fiesta Wagon



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