I just purchased a set of 23 degree trick flow heads(TFS-30400001) for my 350 . I have a set of Scorpion 1.5 roller rockers,and they were not listed so I wasn't sure what length pushrods I need.Some of the 1.5s had different length pushrods required then others.I want to purchase a set of hardened pushrods,but want to make sure I get the right length.Please if anyone knows please let me know,i'm trying to get the motor back in.Thanks

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69 Camaro rolling chassis at the moment

You can buy an adjustable push rod from many sources including your cam manufacturer or your local speed shop. Install it and adjust to fit, measure it and order that length.

I called summit...with my cam and heads(also have trickflows) and rocker arm's, They were able to set me up with the right length...Ordered my rockers and pushrod's at the same time though. Becareful with those rockers...Trick flow only recomends a few certain brands that will work properly with their heads....

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Tony
<UL TYPE=SQUARE>
<LI>1979 Z-28, 350, Th350- Edelbrock Performer RPM cam and intake, Holley 650, Trick flow twisted wedge heads, dynomax headers,flowmaster american thunder exhuast
[/list]
http://hobbystage.net/camaro/xodus921/

Trickflow makes there own roller rockers for use on there heads..If you buy there combo summit can set you up with the correct length..Good luck

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Restored 68 Camaro R/S 327 4 speed
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Restored 55 chevy Belair
Blown, Fuel Injected
http://community.webshots.com/user/badcaiman
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76 Limited edition T/A # matching
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26 Ford Roadster..Pro street
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79 Corvette..Frame off restoration..(Don't ask WHY :):):))

The scorpions are basically almost identical to the crane gold,so I am trying to find what length pushrods are run with the crane gold 1.5s

Does anyone know where I can find the list of rockers that work w/ the TF heads?

I'm currently running:

- Comp Cams Magnum Cams - Grind: 280H, Gross Lift: .480"
- Comp Cams Magnum Pushrods - 5/16", Standard Length
- Comp Cams Magnum Rocker Arms - 1.52 Ratio, 3/8" Stud

Thanks for ANY info!

Rob

There is only one correct way to check pushrod length. Do it after the engine is assembled with an adjustable length pushrod. Everything else is a guess.

Luke,
Oger is the only one so far with the correct answer. You cannot guess at pushrod length if you want to get it correct. I would suggest calling trick flow, or maybe looking at thier web site. They used to have a very good "handout" on determining correct pushrod length. Conp Cams also has a very good description of the procedure in thier catalog. There are too many factors that can affect this. Deck height, brand of cam and lifters (yes they do differ), head gasket, rocker arms, etc etc. Get a checking pushrod and do it right.

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Bill Koustenis
Owner
Advanced Automotive Machine
Waldorf Md
1971 Chevelle "Heavy Chevy" original owner
1973 Z-28 ..one family car...Brother bought it new in 73

<BLOCKQUOTE>quote:</font><HR>Originally posted by RFrenette:
Does anyone know where I can find the list of rockers that work w/ the TF heads?


Rob<HR></BLOCKQUOTE>

The "issue" with TFS heads and rocker arms lies with the TWISTED WEDGE heads, not the 23 DEG heads. The twisted wedge head uses a special intake rocker with has a shorter roller to trunion distance than a typical chevy rocker. Comp cams makes part #1307-8 for the 3/8" stud (1.52 ratio) or 1308-8 for the 7/16" stud.



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