Combat Head - Wobbly Valves

baz · Mar 5, 2019

swooshdave said:
I didn't know there was going to be a quiz!

There is very often a quiz
Sometimes with conflicting answers
Sometimes more questions than answers
Sometimes no answers!!

dynodave · Mar 5, 2019

Does the fact that the combat cam has both more lift than stock AND different intake and exhaust lift, and affect ideal push rod length.

marinatlas · Mar 5, 2019

1972 Combat Pushrods

dynodave · Mar 5, 2019

marinatlas said:
https://www.oldbritts.com/pushrods.html
this just a quick answer , may be more to come , what cam do you have ?

marinatlas said:
1972 Combat Pushrods

Good for you...some one is paying attention...LOL

Building a 3 heads rignt now myself, 1 reg 750 for use on combat bottom end and 1 S650/136 for 88SS and one for atlas w/2S twinchain domi cam

swooshdave · Mar 5, 2019

So for the slow people in the back of the class is there actually a preferred length pushrod for the Combat (assuming shaved head and SS cam?)

ILLF8ED · Mar 6, 2019

swooshdave said:
So for the slow people in the back of the class is there actually a preferred length pushrod for the Combat (assuming shaved head and SS cam?)

Not to my understanding. Prior to using the .060” shorter push rods I didn’t worry about it. After Rabers rebuild the head and told me to use shorter push rods.... I think some things about a Commando are just not going to be optimal.

Combat Head - Wobbly Valves

baz

dynodave

marinatlas

dynodave

swooshdave

ILLF8ED

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