slowgsr
15+ Year Contributor
- 862
- 9
- Dec 17, 2007
-
hamilton,
ON_Canada
Hi from doing some searching it turns out in order to put a 7 bolt head on a 6 bolt block you need to drill the head out to 1/2" for the 12mm stud clearance. I have my head installed, torqued down etc. I first went to drop it on the arps and the head binded up on the 2 center holes. I then wiggled it off (no biggie). I then just unscrewed the middle head studs and dropped the head on and thread the headstuds in from the top.
Torqued it down everything went fine. Now I know oil flows through one of the headstud holes (for a short bit) I just want to be sure I'm not restricting oil flow to the head due to the larger stud. I did do the oil port mod to the head though and the headstud clearance issue was only with the center 2 holes.
So guys am I going to be alright here? I really don't want to buy another $200 head gasket unless I absolutley have too.
It my be slightly difficult for me to remove the head though. Doh! It threaded in fairly easy down into the block with the Allen key on the top of the stud, took slight effort but nothing serious and it was only on the center two.
Thanks guys!
Torqued it down everything went fine. Now I know oil flows through one of the headstud holes (for a short bit) I just want to be sure I'm not restricting oil flow to the head due to the larger stud. I did do the oil port mod to the head though and the headstud clearance issue was only with the center 2 holes.
So guys am I going to be alright here? I really don't want to buy another $200 head gasket unless I absolutley have too.
It my be slightly difficult for me to remove the head though. Doh! It threaded in fairly easy down into the block with the Allen key on the top of the stud, took slight effort but nothing serious and it was only on the center two.
Thanks guys!