Re: Building up a C263 gas engine...?

Posted by ChadS on November 10, 2006 at 13:05:15 from (66.228.96.187):

In Reply to: Re: Building up a C263 gas engine...? posted by the tractor vet on November 09, 2006 at 19:03:20:

Ive been tinkering with the engine in my 460 puller,,,, C263 out of a 403 combine. Sleeveless block, stock bore. I was dreading the rebuild on it. It burned oil, had low compression on a few cyls. Ran,,, but not enough. So, I got the head off, started cleaning off the carbon off the piston heads, and around the top of the bores. Long story short, the bore did not even have a lip at the top,, nor did the pistons have any scratches, just like the day it was built. 1967 was the year on the rod bearings. The rings were BAAAADDD!! The top ring,, I could bend it out in a straight line, without it breaking! Never seen nothing like that before,,, but 6 pistons had rings like that. Cleaned, and a ring job, new rod bearings, honed the block, short block inframe rering rebuild was like 150 bucks with the bearings and gasket set. The head,,, HAHAHA! that was another story. The old combine head was pretty rough, bad valves, guides, you name it BAD! Cooked more like it. I had a head we had bought as a rebuild, back when Alfords In Laketon Indiana sold out,, just needed put together,, Ported the ehxaust, just to the gasket pattern, but thats quite a bit,, but still plenty of head left over. Once it fired up, got everything retightened, smoothed out, I could finally run it. Now, being disapointed from the past experiences on the pulling track with this motor, I was leary,, real leary, but I was on top of everything I can think of,,,,, I was just playing around, had it up in 3rd, just turned it loose. It runs around 3000rpm, So it was flying!! My thoughts was,, this thing ran like my stroker H puller, and this engine is pretty much stock!!! Power, wasnt a problem. Im afraid if I went to the 301,,, way too much ponies for what Im doing. But, sticking with the 263,, I still got that option,, but, just aint lacking for power. Chad

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