351 or 400?
Thread Starter
|
Senior User
Joined: Jan 2011
Posts: 145
Likes: 0
From: Dothan, Alabama
351 or 400?
ok I know this question has probably been beat like a dead cat. How do you know if you have a 351 or 400. I was thinking..I have the sticker on the valve cover that says 351/400. I just assumed I had a 351 but dont know for sure. Any certain way to tell on the outside of the engine without breaking the engine apart? btw the original owner dropped in a new engine after he put a 100K on the original motor.. this one has 37k on it..
Posting Guru
Joined: Nov 2007
Posts: 1,305
Likes: 2
From: Montgomery, IL
bring the engine up to tdc on the #1 piston.
spin the motor 180 degrees to get #1 to bdc.
take a wooden dowel and insert it into the cylinder and measure how far down into the cylinder it goes.
compare that measurement with the stroke number for each engine.
spin the motor 180 degrees to get #1 to bdc.
take a wooden dowel and insert it into the cylinder and measure how far down into the cylinder it goes.
compare that measurement with the stroke number for each engine.
Senior User
Joined: Mar 2006
Posts: 120
Likes: 0
From: Pennsville, NJ
what poison is saying is pretty easy. TDC on #1, get wood dowel about 6" long or better, put in spark plug hole till it touches piston. make a mark on the dowel where it makes contact with an easy to see reference point. Turn the engine over exactly 180* and make another mark on the dowel. measure that mark and get back to us if you are not sure.
make sure to keep turning in the same direction and do not back up to get to your TDC mark or you add chain slack into the problem.
make sure to keep turning in the same direction and do not back up to get to your TDC mark or you add chain slack into the problem.
Thread
Thread Starter
Forum
Replies
Last Post
