Time to rebuild a 351 W bottom end
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Junior User
Joined: Nov 2002
Posts: 54
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From: Phoenix USA
Time to rebuild a 351 W bottom end
93' Bronco 351 W, The bottom end is hurting. I would like some suggestions for parts, Crank, Pistons, Oil pump, Connecting rods, etc...
This is not my first motor, but my first Ford build up. I want quality parts for my Ford. Any suggestion would be appreciated.
This is not my first motor, but my first Ford build up. I want quality parts for my Ford. Any suggestion would be appreciated.
Posting Guru
Joined: Jan 2003
Posts: 1,061
Likes: 0
From: Still under the hood in O
Time to rebuild a 351 W bottom end
It depends on how you plan on using it. If it is just a daily driver with the occasional stop light brawl, a stock rebuild is all you need.
If you plan on reving beyond 5500RPM on a regular basis I would at least use forged pistons.
The oil pump can be standard as well so long as the bearing clearances are within close tolerance. If you end up with clearances on the wide side then a H/V should be used.
The most important parts of a reliable rebuild is quality machine work and VERY clean assembly. Take your time and measure everything at least 3 times, you won't regret it.
On a side note, I prefer file to fit moly rings, I don't trust those pre-gapped ring sets. Just let the machine shop know what kind of rings you are going to use.
If you plan on reving beyond 5500RPM on a regular basis I would at least use forged pistons.
The oil pump can be standard as well so long as the bearing clearances are within close tolerance. If you end up with clearances on the wide side then a H/V should be used.
The most important parts of a reliable rebuild is quality machine work and VERY clean assembly. Take your time and measure everything at least 3 times, you won't regret it.
On a side note, I prefer file to fit moly rings, I don't trust those pre-gapped ring sets. Just let the machine shop know what kind of rings you are going to use.
