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Just got engine back from machine shop. It is a 68 440 h . I used 9.7 forged pistons. The gtx has a 3.23 rear going to run 27 inch tire. Comp cams sent the machine shop the HE268 i thought we were going with the XE268. Is it going to be worth changing out to the xe or just stay with th HE...
I have tried three different seals and a hughes seal and seal retainer. Last attempt I clocked seal at 6 and 12. It does not leak at idle for 25 mins. Next went to 1500 for 5 mins,2000 for 5 mins, and 2500 for 5mins no leaks. I ran to 3000 it starts leaking. I have put dye in so I for sure see...
Running comp xe268 cam 9.5 to1 compression. 3.91 rear gear. Had a new dacco 764 come apart on my fresh tranny so want a better one this time. I want on that is streetable but will still get out of its own way.
I am building a 383 for my roadrunner. We put a cam kit in a 440 and ran it for maybe 200 miles then lost compression on number one due to the edge of exhaust valve chipping off. My question is would it be ok to run that cam and lifters in the 383 along as I keep everything in order.
trying to select best cam for my combo. It is a 383 9 to 1 compression bored 30 over, 727 dacco 764 converter, 3.91 gears,and 255/60/15 rear tire. My engine builder suggested comp 280H 480/480.
When install engine/tranny was almost vertical oil started coming from rear main seal. I had 5 qts of oil in it. Could being at almost vertical angle cause oil to go past seal?