The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 1969 C10 SWB

**CC69Rat** · 10-01-2011, 09:08 PM

I'm probably going to stay with the iron heads. To be perfectly honest I'm not what I'd call familiar with the heads either. From the research I have done though, they didn't come on this motor, and were originally a decent head of some sort. From what I understand they are closed-chamber oval-port head known to have issues with the valves being a little small. I am looking to be sure but I hear 2.19/1.88 really help on the bottom end. While I have it apart I might just flow these a little and go with larger valves (unless they already have them, which is possible) ..

.. just my thoughts right now. Could change.

10-01-2011, 09:08 PM	#118
CC69Rat Senior Member Join Date: Jan 2011 Location: Chattanooga TN Posts: 6,205	Re: 1969 C10 SWB Stepside - Big Block project I'm probably going to stay with the iron heads. To be perfectly honest I'm not what I'd call familiar with the heads either. From the research I have done though, they didn't come on this motor, and were originally a decent head of some sort. From what I understand they are closed-chamber oval-port head known to have issues with the valves being a little small. I am looking to be sure but I hear 2.19/1.88 really help on the bottom end. While I have it apart I might just flow these a little and go with larger valves (unless they already have them, which is possible) .. .. just my thoughts right now. Could change. __________________ Chad 1967 C10 SWB - Project Savannah - 6.0/4L80 Currently underway 1968 C10 SWB - TOTY 2018, 50th Anniversary Tribute Project * Sold * Pride and Joy 1986 Silverado Short Fleet - Scarlet Sold 1985 Silverado Short Fleet Sold 2022 Jeep Gladiator Mojave 2001 Jeep Cherokee XJ 4x4 - Lifted, Built 1992 Jeep Cherokee XJ 4x4 - Lifted 2013 Honda Accord EX-L v6 Coupe 6spd (wife's ride) Last edited by CC69Rat; 10-01-2011 at 09:16 PM.