New pushrods for BBC
#1
Member
JUNIOR BUILDER
Thread Starter
Join Date: May 2007
Posts: 83
New pushrods for BBC
Hi,
what kind of pushrods you recommend? Bracket race BBC, 3/8" thick max (for existing guide plates), 7200rpm max, 200+ lbs at the seat, 700 open of valve pressure. I need to measure the lenght first, but I'm looking for general recommandations please.
Chromemoly with heat treating and 0.080" wall thickness should handle it? Comp cams, Manley, Crane or what?
thanks,
Mikko
what kind of pushrods you recommend? Bracket race BBC, 3/8" thick max (for existing guide plates), 7200rpm max, 200+ lbs at the seat, 700 open of valve pressure. I need to measure the lenght first, but I'm looking for general recommandations please.
Chromemoly with heat treating and 0.080" wall thickness should handle it? Comp cams, Manley, Crane or what?
thanks,
Mikko
#2
Senior Member
RACING JUNKIE
Join Date: May 2006
Posts: 2,044
I used comp cams HI-Tech one piece units on my BBC race motor.
They sell them indiviually and in a vast array of lenghts so you can get your rocker arm geometry as close as possible.
They were priced good too.
They sell them indiviually and in a vast array of lenghts so you can get your rocker arm geometry as close as possible.
They were priced good too.
#3
Senior Member
RACING JUNKIE
Join Date: Sep 2007
Posts: 4,137
Call Manton...maybe he can make you some 3/8 that are heavier than .080 because you need 7/16 pushrods with your set up.
Comp Crane Manley etc don't make their pushrods...I think TREND makes many of them and just etches their name on them...They are good pushrods but bigger would be better.
Comp Crane Manley etc don't make their pushrods...I think TREND makes many of them and just etches their name on them...They are good pushrods but bigger would be better.
#4
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MASTER BUILDER
Join Date: Aug 2003
Location: Big Lake, Minnesota
Posts: 162
Call Terry at Manton. They offer 5 different series of pushrods and he can make you a set with .120 or .145 wall 3/8ths pushrods and he is reasonable on his pushrod prices.
I bought a set of 24 degree heads from RFD and Curtis had mentioned to call him for a set of pushrods. I ended up with the Series 5 (.120) wall pushrods for non-guideplate use for under $300. Hope this helps.
http://www.mantonpushrods.com/
I bought a set of 24 degree heads from RFD and Curtis had mentioned to call him for a set of pushrods. I ended up with the Series 5 (.120) wall pushrods for non-guideplate use for under $300. Hope this helps.
http://www.mantonpushrods.com/
#6
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JUNIOR BUILDER
Thread Starter
Join Date: May 2007
Posts: 83
How much difference is there in .300" taller lifters and "stock" Mark IV BBC lifters. My friend has both of them and he said that the pushrod cup is .100" higher in the .300" lifter, can somebody confirm that?
#8
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JUNIOR BUILDER
Thread Starter
Join Date: May 2007
Posts: 83
Originally Posted by triniemi
How much difference is there in .300" taller lifters and "stock" Mark IV BBC lifters. My friend has both of them and he said that the pushrod cup is .100" higher in the .300" lifter, can somebody confirm that?