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Old 12-15-2013, 04:21 PM
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esarvey esarvey is offline
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Join Date: Nov 2009
Location: North Carolina
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Default Ford flat head vs. merc.

Quote:
Originally Posted by Merk View Post
Sam Mac Merk& sam, back in the day I built flat head fomco engines to race , the block/bore was same ,rods same , the compression distance on pistons was different ( top of pist. to rod connection point) was difference, learn that one the hard way !! LOL

Do you use a repair manual from a Navistar truck to fix a cat engine ???
I hope not.

You have no clue on what I have work on and I could care less what you have worked on. I thought this topic was about Briggs and Stratton engines(not Cat engines) in Cub Cadets?????

Why not use a manual from Briggs and Stratton to fix a Briggs and Stratton engine? My information came from a Briggs and Stratton manual not a Cub Cadet manual as I stated in my earlier post.

I did some checking in a Briggs and Stratton manual. The cylinder bores, connecting rods and crankshaft are the same in both engines. The Pistons are not the same.

BS-303447-1147 engine has the following part numbers:
piston-standard-843951
piston-.020 oversize-843958

BS-294447-1145
piston-standard-807619
piston-.020 oversize-807809

It looks like the piston pin location is in a different location between the 2 engines.


Carbs are different too
BS-303447-1147-carb# 809011
BS-294447-1145-carb# 809009


I will repost this again....the BS-303447-1147 is a 30 cubic inches. The BS-294447-1145 is a 29 cubibic inches.
]Sam Mac Merk& sam, back in the day I built flat head fomco engines to race , the block/bore was same ,rods same , the compression distance on pistons was different ( top of pist. to rod connection point) was difference, learn that one the hard way !! LOL
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