1979 Chevrolet C70 Conversion to OEM Air Conditioning - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Airdirect · 04-28-2024, 10:42 AM

I have installed new X head pistons and sleeves, in the picture I am measuring the difference in height between the sleeve flange and block deck. Manual says .046 to .050 with max difference between adjacent cylinders of .015. Three of mine measured .045 and one .044. I did clamp them down (not shown). Ready for head install.

Airdirect · 05-03-2024, 10:03 AM

Got the engine finished up, picture is just before the oil pan installation. Headed to our first tractor show of the year, Pawnee OK, about 8 hours (round trip). Should be a good break in run for the 4-53T.

04-28-2024, 10:42 AM	#1
Airdirect Registered User Join Date: Oct 2016 Location: Powderly Texas Posts: 300	1979 Chevrolet C70 Conversion to OEM Air Conditioning I have installed new X head pistons and sleeves, in the picture I am measuring the difference in height between the sleeve flange and block deck. Manual says .046 to .050 with max difference between adjacent cylinders of .015. Three of mine measured .045 and one .044. I did clamp them down (not shown). Ready for head install. Attached Images Last edited by Airdirect; 04-29-2024 at 10:01 AM. Reason: Rotated Picture

05-03-2024, 10:03 AM	#2
Airdirect Registered User Join Date: Oct 2016 Location: Powderly Texas Posts: 300	1979 Chevrolet C70 Conversion to OEM Air Conditioning Got the engine finished up, picture is just before the oil pan installation. Headed to our first tractor show of the year, Pawnee OK, about 8 hours (round trip). Should be a good break in run for the 4-53T. Attached Images



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