Narrow body rocker arms
05-08-2019, 03:53 PM
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Car: 88 Camaro SC
Engine: Aluminum Vortec headed 383 roller
Transmission: ProBuilt 700R4
Axle/Gears: 9 bolt/3.27
Narrow body rocker arms
Does anyone know if either of these rocker arms will fit(without modifying the valve cover) under a stock height center bolt valve cover on a small block Chevy engine? Trick Flow TFS-31400513 or Scorpion 1038. The cylinder head I'll be using is Trick Flow TFS-30310006. I read it requires a narrow body rocker arm with the 1.470" diameter valve springs these are equipped with. I already performed a search and didn't find the answer to my specific question/application.
05-09-2019, 09:52 PM
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Car: 88 Camaro SC
Engine: Aluminum Vortec headed 383 roller
Transmission: ProBuilt 700R4
Axle/Gears: 9 bolt/3.27
Re: Narrow body rocker arms
Or, how about Crane 10759? Anyone use these under stock height center bolt valve covers?
05-10-2019, 06:42 AM
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Narrow body rocker arms
I have narrow body crane rockers on 113 heads under stock covers. If the heads have the same valve spacing as stock heads, no reason they shouldn't fit.
05-10-2019, 01:07 PM
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Car: 88 Camaro SC
Engine: Aluminum Vortec headed 383 roller
Transmission: ProBuilt 700R4
Axle/Gears: 9 bolt/3.27
Re: Narrow body rocker arms
I'll be using the Trick Flow TFS-30310006. Valves are 1.94" and 1.5". I'm not sure on the valve spacing though. Sounds like some research is in order regarding valve spacing on the Trick Flows. See if I can come up with anything. Thanks for the response.
05-10-2019, 04:48 PM
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Narrow body rocker arms
I'm 99.9% you'd be ok with that head. I ran normal fat comp stainless rockers on my old twisted wedge heads (with the goofy valve angles). Not sure what you're going for but if it's for a 350 and up, I'd look for a head in the 195-200 cc range.
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