roller lifter question
Thread Starter
Drifting
Joined: May 2001
Posts: 1,392
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From: Wabash,IN
CI 7-8-9-10 Veteran
St. Jude Donor '08
roller lifter question
can i use these on a hydraulic cam shaft ?? jus wandering, i dont know
i have a comp cam 477/480 lift THANKS JAY :crazy:
also what kind and style would u recommend- vert. spring locking -????
[Modified by jparr, 2:50 PM 9/25/2002]
i have a comp cam 477/480 lift THANKS JAY :crazy:
also what kind and style would u recommend- vert. spring locking -????
[Modified by jparr, 2:50 PM 9/25/2002]
Team Owner
Joined: Dec 2000
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From: SE NY
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Re: roller lifter question (jparr)
I've heard here that the iron heads use small holes to guide the pushrods and non self aligning stamped rockers.
This means that you can use only 1.5:1 non self aligning RRs with the stock heads. Or you could have the heads machined so the closer pushrod movement won't bind and then use guide plates or self-aligning RRs.
This means that you can use only 1.5:1 non self aligning RRs with the stock heads. Or you could have the heads machined so the closer pushrod movement won't bind and then use guide plates or self-aligning RRs.
Race Director
Joined: May 2001
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Re: roller lifter question (65Z01)
I've heard here that the iron heads use small holes to guide the pushrods and non self aligning stamped rockers.
This means that you can use only 1.5:1 non self aligning RRs with the stock heads. Or you could have the heads machined so the closer pushrod movement won't bind and then use guide plates or self-aligning RRs.
This means that you can use only 1.5:1 non self aligning RRs with the stock heads. Or you could have the heads machined so the closer pushrod movement won't bind and then use guide plates or self-aligning RRs.
To answer your question I'm pretty sure that's a negative. Roller cams are ground differently. Cams for flat tappet lifters have a tapper face on the lobes that actually makes the lifter spin as it moves. Roller cams will have a flat face on the lobes.
I guess techically you COULD use them, but you would have a very small contact patch between the lifter and the cam which would cause some very strange wear issues.
[Modified by Nathan Plemons, 3:56 PM 9/25/2002]
Team Owner
Joined: Dec 2000
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From: SE NY
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Re: roller lifter question (Nathan Plemons)
Oops, my bad, I just reread the post.. :rolleyes: ...gotta get "that woman" outa my thoughts before responding in the future. :bb
Anyway, yes, you cannot use roller lifters on a flat tappet cam for the reasons stated. In fact even with a roller cam it's a PITA since your block has no means of keeping the lifters from rotating.
Anyway, yes, you cannot use roller lifters on a flat tappet cam for the reasons stated. In fact even with a roller cam it's a PITA since your block has no means of keeping the lifters from rotating.
