The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Factory big block throttle, return, and PCV

davepl · 11-25-2015, 02:07 PM

Does anyone have a picture of an original PCV setup for a big block (1970 if it matters)?

Mine uses a straight PCV, not a 90, so the hose sticks way up and the wraps around to the carb; that's how it was when I got it, and the truck was largely unmolested except for carb linkage.

Also, does anyone have a good picture of the clip used to hold the throttle rod to the carb? I've just got a cotter pin through it and suspect that's not original.

Same deal with return spring.

I guess I'm asking "Does anyone have a good photo of a stock big block" with these details visible?

11-25-2015, 02:07 PM	#1
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	Factory big block throttle, return, and PCV Does anyone have a picture of an original PCV setup for a big block (1970 if it matters)? Mine uses a straight PCV, not a 90, so the hose sticks way up and the wraps around to the carb; that's how it was when I got it, and the truck was largely unmolested except for carb linkage. Also, does anyone have a good picture of the clip used to hold the throttle rod to the carb? I've just got a cotter pin through it and suspect that's not original. Same deal with return spring. I guess I'm asking "Does anyone have a good photo of a stock big block" with these details visible? __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible