K-chai
Well-Known Member
Hi
Me and my friend are rebuild a440 with 512 stroker kits. We use speed master cylinder head. After the we finished the rebuild we ran engine for 100miles and the pushrod was bend spring valve was broken. We recheck in the Speed Master cylinder specifications. It said "oiling type : through pushrod,but what we use is a normal pushrod.
Anyway after we remesured the pushrod length with the adjustable pushrod. We found out that the length of the pushrod is 0.15 longer than it should be.
So what do you think is the reason of this broken engine? Too long pushrod, no oil through pushrod. or both?..
Help us please
Best regards.
Me and my friend are rebuild a440 with 512 stroker kits. We use speed master cylinder head. After the we finished the rebuild we ran engine for 100miles and the pushrod was bend spring valve was broken. We recheck in the Speed Master cylinder specifications. It said "oiling type : through pushrod,but what we use is a normal pushrod.
Anyway after we remesured the pushrod length with the adjustable pushrod. We found out that the length of the pushrod is 0.15 longer than it should be.
So what do you think is the reason of this broken engine? Too long pushrod, no oil through pushrod. or both?..
Help us please
Best regards.