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Rocker arm ? #873134 12/06/10 06:11 PM 12/06/10 06:11 PM
Joined: Jan 2003 Posts: 4,002 Joplin, Mo R rt66jim OP master
rt66jim OP master R Joined: Jan 2003 Posts: 4,002 Joplin, Mo	I gather from looking around on the internet that the T&D rockers for a SBC-2 and the P7 head are the same. My ? is does the W9 head use a rocker that is also used on another make head. Jim

Re: Rocker arm ? [Re: rt66jim] #873135 12/06/10 07:44 PM 12/06/10 07:44 PM
Joined: Jan 2003 Posts: 8,547 State College, PA RyanJ moparts member
RyanJ moparts member Joined: Jan 2003 Posts: 8,547 State College, PA	The arms themselves are really just 3 sets of dimensions.... body width, pivot length & adjuster offset.... the STAND they bolt to are what are head specific. There may very well be some brand X head out there than uses same pivot length & rocker arm offset & body width as a W8 or W9 etc. I don't know what it would be, but would not surprise me if the same arm is used in some other application. I've used different spec rockers on certain heads before than what T&D or Jesel originally supplied with that particular stand.... (usually different offset or body width)

Re: Rocker arm ? [Re: RyanJ] #873136 12/06/10 07:55 PM 12/06/10 07:55 PM
Joined: Jan 2003 Posts: 4,002 Joplin, Mo R rt66jim OP master
rt66jim OP master R Joined: Jan 2003 Posts: 4,002 Joplin, Mo	Thanks Ryan. Jim

Re: Rocker arm ? [Re: RyanJ] #873137 12/06/10 08:05 PM 12/06/10 08:05 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Ryan does the W-7 use a shorter length hold down bar than a W-5... I have a set of TDs that have a shorter bar and I dont recall what they go on thanks

Re: Rocker arm ? [Re: MR_P_BODY] #873138 12/06/10 08:17 PM 12/06/10 08:17 PM
Joined: Jan 2003 Posts: 8,547 State College, PA RyanJ moparts member
RyanJ moparts member Joined: Jan 2003 Posts: 8,547 State College, PA	Quote: Ryan does the W-7 use a shorter length hold down bar than a W-5... I have a set of TDs that have a shorter bar and I dont recall what they go on thanks I'm confused by the question, but if the stands are T&D they should be stamped on lower left corner as to what head they fit. W-5 W-7 W-8 W-9 or W-9RP Also W5 would obviously use (5) 3/8" holes equally spaced. Most W7's were Lazy W bolt pattern & used both 3/8 & 7/16 bolts in a zig zag pattern Or are you talking about the rocker shafts? W7/8/9 T&Ds are interchangeable shafts & rockers for most part. W5 off top of my head may use a slightly narrower shaft, but I'd have to doublecheck that @ shop. The pivot length on the W5 rocker will be shorter than a W7/8/9 rocker. Although they make 2 different pivot lengths for W5 heads depending on valve length used.

Re: Rocker arm ? [Re: RyanJ] #873139 12/06/10 08:33 PM 12/06/10 08:33 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Quote: Ryan does the W-7 use a shorter length hold down bar than a W-5... I have a set of TDs that have a shorter bar and I dont recall what they go on thanks I'm confused by the question, but if the stands are T&D they should be stamped on lower left corner as to what head they fit. W-5 W-7 W-8 W-9 or W-9RP Also W5 would obviously use (5) 3/8" holes equally spaced. Most W7's were Lazy W bolt pattern & used both 3/8 & 7/16 bolts in a zig zag pattern Or are you talking about the rocker shafts? W7/8/9 T&Ds are interchangeable shafts & rockers for most part. W5 off top of my head may use a slightly narrower shaft, but I'd have to doublecheck that @ shop. The pivot length on the W5 rocker will be shorter than a W7/8/9 rocker. Although they make 2 different pivot lengths for W5 heads depending on valve length used. I didnt know they were stamped... I'll look tomorrow but it has the lazy W bolt pattern but the main bar(not the short shafts) is shorter but about 1" EDIT I see what you mean on the stamping on them... they are W-8s Last edited by MR_P_BODY; 12/06/10 08:41 PM.

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