Rocker arms

[Phil A.]

Does anyone know when the "0" on hiperformance rocker arms was first used? Thanks Phil

[Michael H.]

Re: Rocker arms

Does anyone know when the "0" on hiperformance rocker arms was first used? Thanks Phil

Phil, I think it was some time in the early part of the 63 model year.

[Ray K.]

Re: Rocker arms

Phil

Michael is most likely correct or very close as I show that they entered the parts system in 5-64 under part #3843359, so production sometime in 1963.

Also, about that same time, the hardened tip pushrods #3796243 became available.

Ray

[Clem Z.]

Re: Rocker arms

Phil

Michael is most likely correct or very close as I show that they entered the parts system in 5-64 under part #3843359, so production sometime in 1963.

Also, about that same time, the hardened tip pushrods #3796243 became available.

Ray

the hardened tip push rods are hardened only on one end so always make sure the that tip is up. new ones have a blue stripe on the hard end and if you look close you can see the hardened insert that is not on the other end.

[Michael H.]

Re: Rocker arms

Phil

Michael is most likely correct or very close as I show that they entered the parts system in 5-64 under part #3843359, so production sometime in 1963.

Also, about that same time, the hardened tip pushrods #3796243 became available.

Ray

Ray,

Just out of curiousity, I looked in my old July 63 printing of the parts book and the 3843359 is listed. It probably entered production several months prior to that time.
I think the 3796243 pushrod was around during the latter part of 62 model year production.

[Ray K.]

Re: Rocker arms

Michael

I'm sure that you are correct. I just checked the history section to see when they actually referenced the change in part Numbers. The pushrod was earlier than the rocker arm. And good point to Clem - I should have said that only one end is hardened ( with a blue or black stripe) and that it goes up to the rocker arm.

Ray

[Bill M.]

Re: Rocker arms

Ray,

Just out of curiousity, I looked in my old July 63 printing of the parts book and the 3843359 is listed. It probably entered production several months prior to that time.
I think the 3796243 pushrod was around during the latter part of 62 model year production.

October 1, 1962 parts book shows 3796243 for '62,'63 340 and 360.

[Stuart F.]

Re: Rocker arms

My L-76 built in July 63 has both. Just did a valve adjustment a month or so ago and noted appearance and condition. All is going well after 44,500 miles.

Stu Fox