ROCKERS

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ROCKERS
November 29 2000 at 11:02 AM
No score for this post David laxton (no login)
from IP address 192.31.86.35

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HELP need a set of roller rockers for a 385.
1.7 or 1.73 for 7/16 stud (912)673-9594
[email protected]

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Bob M
(no login)
63.26.2.223 Rockers on eBay
No score for this post November 30 2000, 12:59 AM

There are always BB Chevy 1.7 rockers on eBay at good prices. And they work fine on a BB Ford.
Use the keywords Chevy, and Roller rockers.
Good Luck

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aaron
(no login)
216.40.132.220 info
No score for this post December 2 2000, 10:54 PM

chevy rockers? what needs to be done to y 1978 d3ve a2a heads to accept the roller chevy rockers?
ive never heard of using them

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Bob M
(no login)
63.25.252.217 BBChevy rockers work with early BBF heads...
No score for this post December 3 2000, 2:39 AM

that have screw-in studs. The later heads like yours have a "bolt-down" set-up that requires modification (by a machine shop) to inst. screw in studs. The only real reason to use the Chevy rockers is there is more chance of finding a used set cheap.

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David laxton
(no login)
192.31.86.34 STUD KIT
No score for this post December 4 2000, 8:03 AM

Crane makes a stud kit that works with out doing
any machine work. You can do it with the heads on the motor. Look in SUMMIT or Jegs. The kit runs $50 or $60 bucks.

Dave

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tking
(no login)
65.103.15.224 How can that be?
No score for this post December 17 2001, 5:44 PM

I can see how the ratio is the same(1:7) but the length of the arm must be the same and the shape of the push rod indentation would have to be identical wouldn't it? Also is the stud for this conversion the Chevy stud or the Ford? How could Chevy and Ford just happen to make cylinder heads with exaclty the same valve to pushrod distance? Is it possible that after a while the Chevy rockers would wear incorrectly?

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Bob M
(no login)
63.26.3.240 351C racers used to do it all the time, with no probs...
No score for this post December 18 2001, 12:02 AM

before a dedicated Ford rocker was produced by the aftermarket. And 351C and 460 rockers are exactly the same dimensions. As when using any rocker...You have to get the push-rod length correct to make the geometry right, and test fit is the only way to know.

The best I can tell the only difference between the Chevy part and the Ford, is that the push-rod cup is very slightly closer to the fulcrum on the Ford part...That's where the extra ratio comes from (Ford ratio is 1.73)

To answer the second part of your question...The BBChevy and BBFord studs are usually the same part# in the cam books.

Bob

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tking
(no login)
63.231.135.8 very interesting
No score for this post December 18 2001, 10:56 AM

Thanks for the explanation and the info.

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Kevin
(no login)
209.86.130.145 Rockers
No score for this post December 1 2000, 7:47 PM

Hi Dave,

I like the 1.73 Full roller rockers by
Crower. You can use them with pushrod guide plates or since your heads have 7/16 studs,
you can order the rockers with self-aligning
roller tips. That way you don't have to bother with machining or guideplates or hardened rods.

P/N's are:

73615
or
73615-SA (self-aligning)

My motor came from the factory with the
full 7/16 stud like yours....and those
cast rockers with guide rails to keep them on the valve. If you want to see a picture of the
self-aligning tips...go here:
http://www.crower.com
The roller has little flanges machined into it
that do the same thing as the factory rails.

Help !!!

I am trying to pick out a good piston for my
429 and stay between 9.7 to 10:1 compr. ratio.

I know the early CJ heads had a chamber of 73.5cc

I know the later 72' and up 429 heads were 90cc

What I need is the chamber size for the 68' - 71'
ThunderJet DOVE heads.

Thanks much !
Kev


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Bob
(no login)
12.47.64.194 Untitled
No score for this post December 18 2000, 11:23 AM

74-77cc, 72-74 PI heads were mid 80s

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T-BOLT
(Login T-BOLT)
206.32.4.22 BOB????
No score for this post December 17 2001, 7:50 PM

whats your post mean.

64 FAIRLANE 460

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ken
(no login)
165.154.190.1 rockin
No score for this post December 18 2001, 12:32 PM

You will find that most companies use exactly the same rocker for the 351c the 460, and BBC That is why we get short changed a few thou, 1:7 vs our 1:73. Yes some make dedicated ones but not many. Anyway, they work fine.

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