suposedly .004 on a cast iron head, .006 on an aluminum head= cold
I have been setting my solid roller cam/alum. heads at .006 tighter for 12ish yrs. , the one time I checked them they were right on , have had no problems ...
I usually get the lucked up thing backwards > ^^^^^^
Stiil looked like too little cam gear mesh to me ...
no doubt you`ve put some thot into all this , what could you do to get a little more...
N
Neat , but why so much installed clearance ? Have heard of some guys that supposedly ran .005 on big blocks , I`ve always ran .007-.010....hemi, sbc, 440 wedge .
kinda agre w
kinda agree with you , but but i ran what ever oil was would be furnished by the small sponsers I had , back in the hemi days , as long as it was name brand , and the hemi didnt give a dam what kind , 30 , 40 or 50 weight ...
the first time I changed oil in a new 1969 coronet 440-4 speed ,rt , something started blocking the drain hole , reached in w/ a wire w/ a hook bent on it , and pulled a gob of steel wool out --sabotage from the factory , no doubt !
a little out of line here , but , what pisses me off is, David Page went to work for edelbrock, he was the go to guy for troubles at fast fuel inj., he was reportedly still in memphis , but in a diff. building.
I quit reading about halfway thru this post , I ran w/o the plug washers in my hemi for 14 yrs with no problems , nary a one !
Even got the idea from Tom Hoover ! The alum tubes sealed very well , unless they are worn out or chewed up from the washers to start with .
Agree with all of it except the hemi part . The sides of the hemi piston is where the quench is at , not the bottom of the piston .
And on a superstock hemi , we couldn`t go above 36 degrees very far w/o killing power . I had jacked around with it at the dragstrip , went up to 42 and slowed it...
I replaced the rodbolts in a hemi superstock type engine w/ mopar bolts , didnt change anything , knocked them in w/ a hammer while holding the rod in my left hand.< tells you how tite they were .
That engine was raced for a lot of yrs. , and as far as I know are still in it -----------