Big Block Chevy Roller Rockers

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F-250 Restorer
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Big Block Chevy Roller Rockers

Post #1 by F-250 Restorer » Sat Aug 12, 2017 3:46 pm

I am hoping this thread will be used for the benefit of others.

I am concerned with fitment and exact measurements with the 1.6 big block Chevy roller rockers. I would like to hear from someone knowledgeable, who has used, or is using, the bbc r.rockers, and who can explain the differences between this rocker and one manufactured for the 240/300 engine. For example, these bbc rockers: https://www.summitracing.com/parts/cca-1826-12

Is there an issue when using the bbc r.rocker? Or is everything kosher? Thank you for taking the time to explain.

pmuller9
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Location: Columbus, Indiana

Re: Big Block Chevy Roller Rockers

Post #2 by pmuller9 » Sat Aug 12, 2017 4:04 pm

Those are exactly the roller rockers I use on my last 300 build.
No problems all. Here they are!

https://dl.dropboxusercontent.com/u/393 ... G_0135.JPG
https://dl.dropboxusercontent.com/u/393 ... G_0133.JPG

The last photo shows stock pushrods. The SBC valves used for this head are .100" longer that stock.
Longer Manton pushrods were needed to get the rocker roller working across the center of the valve stem.
Manton 4 series 5/16 x .118 Wall, 10.290" length.

old28racer
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Re: Big Block Chevy Roller Rockers

Post #3 by old28racer » Sat Aug 12, 2017 8:08 pm

What did the Manton push rods cost? How are they on turnaround?

pmuller9
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Location: Columbus, Indiana

Re: Big Block Chevy Roller Rockers

Post #4 by pmuller9 » Sun Aug 13, 2017 8:03 pm

old28racer wrote:What did the Manton push rods cost? How are they on turnaround?

Depending on how busy they are they can complete an order in 1 to 2 days
Racer price is $16.38 each
Jobber price is $13.65 each

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THE FRENCHTOWN FLYER
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Re: Big Block Chevy Roller Rockers

Post #5 by THE FRENCHTOWN FLYER » Mon Aug 14, 2017 9:17 am

pmuller9 wrote:Manton 4 series 5/16 x .118 Wall, 10.290" length.

Wow, that makes the hole in the center .076 dia.
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