Bore n Stroke!

[DK44H]

Can anyone tell me what the bore and stroke the engine of a 303 combine had? How does this engine compare to an H? I have heard of 303 pistons in H's for pulling and they do well. Just wondered about it. Thanks.

 

[Stroker H]

2.5" is a H-350 (C152-C175) piston compression height. C-263 and up 6 cyl, has a CH of 2.02.

Max bore in a H(C-152) block and have full water, and live, is 3.75 and still have one more overbore option which goes up to 3.8125.

There are kits that are 3-11/16 bore,stock stroke, Seen the ads in Red Power Magazine.

C-169 and C-175 blocks with no sleeve, is around 3.75 bore to begin with. I run them at 3.8125 bore with full water and live all day long.

I happen to have one set of pistons I had made custom that I wont be needing, 3.8125 bore, uses 350 pin, 2.5 CH. flattop.

Hope this helps, Stroker H