The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 350 cylinder head dilemma, rebuild or replace?

68gmsee · 08-13-2018, 11:40 AM

If your engine is high mileage (on these engines anything above 100K) I'd consider reworking the bottom also. I did the same on the engine of my 69 with about 120K and because of the increased compression it developed slight knocking while idling. Still ran okay except for the annoying knocking.

I guess it depends on how much work and $'s you want to put in it.

08-13-2018, 11:40 AM	#4
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: 350 cylinder head dilemma, rebuild or replace? If your engine is high mileage (on these engines anything above 100K) I'd consider reworking the bottom also. I did the same on the engine of my 69 with about 120K and because of the increased compression it developed slight knocking while idling. Still ran okay except for the annoying knocking. I guess it depends on how much work and $'s you want to put in it. __________________ 68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive...