Trying to date a c135 in a I-404, block serial # 375596R1

I'm about to order an engine rebuild kit for this run down old 404. We've had it for about 20 years, and it is on it's last leg. The bottom end is tight, no knocks, no rattles, good oil pressure. The number on the block above the distributor, behind the oil filter canister is serial # 375596R1. Unless I find anything broken around the cam, such as springs, etc., I'm just going to put a sleeve kit in it, and rod bearings. Can anyone date this for me? With engine kits running less than $600 due to competition on the internet, now is my chance to revive this old tractor. Thank you in advance for your help. I'm also going to post a question about the governor on the same tractor. Thanx again, Randy D.
 
Just make sure you get the right pistons & sleeves for your engine block serial number. If you cant find them, I have NOS ones available....
 
You say engine kit how can you get one without pulling the crank. Or do you mean sleeves and pistons. To get the rite sleeves you maybe better pull one and get the measurements. Never know what mite have been changed over the yrs.
 

I have pulled the caps and the crank is excellent, still standard size, never had a knock or any bottom end issues. I don't know if I can afford the sleeve/piston kits, so I may have to re-ring it and hope for the best. How much are the sleeve/piston/ring sets you have?
 
(quoted from post at 19:08:54 11/19/12) I'm about to order an engine rebuild kit for this run down old 404. We've had it for about 20 years, and it is on it's last leg. The bottom end is tight, no knocks, no rattles, good oil pressure. The number on the block above the distributor, behind the oil filter canister is serial # 375596R1. Unless I find anything broken around the cam, such as springs, etc., I'm just going to put a sleeve kit in it, and rod bearings. Can anyone date this for me? With engine kits running less than $600 due to competition on the internet, now is my chance to revive this old tractor. Thank you in advance for your help. I'm also going to post a question about the governor on the same tractor. Thanx again, Randy D.
hat number is the block part number not the serial#, the serial# should be stamped on a flat spot just above the distibutor and right below the head.
 

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