New pushrods for BBC

Old 04-03-2009, 11:15 PM
  #1  
triniemi
Member
JUNIOR BUILDER
Thread Starter
 
Join Date: May 2007
Posts: 83
Default 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
triniemi is offline  
Old 04-03-2009, 11:32 PM
  #2  
cepx111
Senior Member
RACING JUNKIE
 
Join Date: May 2006
Posts: 2,044
Default

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.
cepx111 is offline  
Old 04-04-2009, 03:37 AM
  #3  
Tod74
Senior Member
RACING JUNKIE
 
Join Date: Sep 2007
Posts: 4,137
Default

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.
Tod74 is offline  
Old 04-04-2009, 06:15 AM
  #4  
tcarda
Senior Member
MASTER BUILDER
 
Join Date: Aug 2003
Location: Big Lake, Minnesota
Posts: 162
Default

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/
tcarda is offline  
Old 04-04-2009, 09:19 AM
  #5  
zipper06
Senior Member
RACING JUNKIE
 
Join Date: Jan 2006
Location: La.
Posts: 2,890
Default

Like the others have said, if you can, it would be easier and cheaper in the long run to change the guide plates to 7/16" and use .080 7/16" push rods, stronger and safer on a b/blk.

JMO

Zip.
zipper06 is offline  
Old 04-09-2009, 11:40 PM
  #6  
triniemi
Member
JUNIOR BUILDER
Thread Starter
 
Join Date: May 2007
Posts: 83
Default

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?
triniemi is offline  
Old 04-10-2009, 05:05 AM
  #7  
hammertime
Senior Member
RACING JUNKIE
 
Join Date: May 2003
Location: Coldwater, MI
Posts: 2,998
Default

Manton or Manley
hammertime is offline  
Old 04-10-2009, 10:50 PM
  #8  
triniemi
Member
JUNIOR BUILDER
Thread Starter
 
Join Date: May 2007
Posts: 83
Default

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?
Anybody?
triniemi is offline  
Old 04-11-2009, 06:03 AM
  #9  
tcarda
Senior Member
MASTER BUILDER
 
Join Date: Aug 2003
Location: Big Lake, Minnesota
Posts: 162
Default

Maybe find out what kind of lifters he has and contact the tech department there. That way you will know for sure. JMO
tcarda is offline  
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -