Posted by Destroked 450 on December 14, 2023 at 06:58:19 from (72.2.243.113):
In Reply to: BSD 444 piston height posted by Patcar6972 on December 12, 2023 at 07:23:47:
Did you measure the actual stroke of the engine, it sounds like you installed 268 pistons in a shorter stroked 256 engine
All of the 4.4 engines have the pistons sticking above the block from .011 - .023 in non turbo engines, and .000 - .012 in turbo engines
You can not mix turbo and non turbo pistons due to wrist pin sizes, non turbo piston wrist pins are 1.500 inch dia, turbo piston wrist pins are 1.625 inch dia which requires a turbo rod
256 has 4.4 bore x 4.2 stroke
268 has 4.4 bore x 4.4 stroke
Installing a 256 piston while using a 268 crank will have the piston sticking .100+ out of the block
Installing a 268 piston while using a 256 crank will have the piston sticking .100+or- down in the bore
Pull an injector out and measure the stroke of the engine
Finding info on the BSD442/444 engines is fairly easy as they are the same engines that were used in the Series 10 tractors
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