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Re: Push Rods
[Re: JERICOGTX]
#2932169
06/11/21 12:43 AM
06/11/21 12:43 AM
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Joined: Mar 2007
Posts: 3,277
West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,277
West Coast, USA
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I used Manto Stage 5 - 7/16ths pushrods in my 493 along with a custom set of T&D's and a B3 Racing geometry correction kit. The result is the smoothest running/reving RB I've owned it 4 decades. Curious about the B3 Geometry correction kit? Tell me more. I think you would get a lot more quality information if you gave Mike at B3 a call after reading and understanding his articles that can be found on his web page linked in an above post.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Push Rods
[Re: jbc426]
#2932207
06/11/21 08:57 AM
06/11/21 08:57 AM
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Joined: May 2016
Posts: 630
Ct
Wirenut
mopar
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mopar
Joined: May 2016
Posts: 630
Ct
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Manton was great to deal with . I had a couple of test rods made to see how big I could get in there. Rb with Indy -1 690 lift 7/16 straight on ex 3/8 x 7/16 taper on int .
Ditto on b3. Call and talk to Mike. You will learn a lot .[i][/i]
Last edited by Wirenut; 06/11/21 08:58 AM.
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Re: Push Rods
[Re: B3422W5]
#2953671
08/14/21 10:26 AM
08/14/21 10:26 AM
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Joined: Jan 2003
Posts: 16,923
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,923
NC
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No doubt that Manton makes top level stuff, like their Series V. Does anyone have experience with the Comp Cams 7/16 dia pushrods? Link to Comp Cams pushrod descriptionCOMP Cams® Straight 7/16", .165" Wall Pushrods incorporate technology that was originally developed for NASCAR and NHRA race engines. Pushrods in many of these applications experience impact loads of up to 7500 lbs., meaning the incorrect one can cause catastrophic failure. The additional stiffness and higher natural frequency of a 7/16" diameter pushrod is a significant advantage in any application that has ample intake port and lifter clearance. The main bodies of these pushrods feature a straight 7/16" O.D. that tapers down to a 210˚ radius, 5/16" ball end. The radii on each end provide additional clearance for the rocker adjuster at high lift and allow the pushrods to be installed either “up” or “down”. The pushrods have a consistent .165" wall thickness, even in the tapered ends, which is thicker, stiffer and stronger than common .080" or .125" wall designs. These pushrods are made in the USA from heat-treated, one-piece chromemoly tubing I bought one to see what it looks like, and to see how it fits with offset seat intake lifters (to go with B1 offset intake rockers).  
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Re: Push Rods
[Re: 440Jim]
#2953838
08/14/21 07:45 PM
08/14/21 07:45 PM
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Joined: Feb 2008
Posts: 714
Central TEXAS!!!!
sr4440
super stock
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super stock
Joined: Feb 2008
Posts: 714
Central TEXAS!!!!
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No doubt that Manton makes top level stuff, like their Series V. Does anyone have experience with the Comp Cams 7/16 dia pushrods? Link to Comp Cams pushrod descriptionCOMP Cams® Straight 7/16", .165" Wall Pushrods incorporate technology that was originally developed for NASCAR and NHRA race engines. Pushrods in many of these applications experience impact loads of up to 7500 lbs., meaning the incorrect one can cause catastrophic failure. The additional stiffness and higher natural frequency of a 7/16" diameter pushrod is a significant advantage in any application that has ample intake port and lifter clearance. The main bodies of these pushrods feature a straight 7/16" O.D. that tapers down to a 210˚ radius, 5/16" ball end. The radii on each end provide additional clearance for the rocker adjuster at high lift and allow the pushrods to be installed either “up” or “down”. The pushrods have a consistent .165" wall thickness, even in the tapered ends, which is thicker, stiffer and stronger than common .080" or .125" wall designs. These pushrods are made in the USA from heat-treated, one-piece chromemoly tubing I bought one to see what it looks like, and to see how it fits with offset seat intake lifters (to go with B1 offset intake rockers). That's what i run in my B1, 290 seat 835 open. so far no issues in 4 years. FWIW I run T & D shaft rockers on that set of B1's Joe
Without Data, you’re just another guy with an opinion.
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Re: Push Rods
[Re: sr4440]
#2953879
08/14/21 09:54 PM
08/14/21 09:54 PM
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Joined: Jan 2003
Posts: 16,923
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,923
NC
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That's what i run in my B1, 290 seat 835 open. so far no issues in 4 years. FWIW I run T & D shaft rockers on that set of B1's
Joe
Nice to hear. Thanks for the experience. I have the T&D rockers also, small shaft with a pair of rockers per cylinder. B1 original 2.30"/1.78" valves My spring pressures are close to that too, small amount less with 0.816"/0.799" lift. Affordable, seem stout (and heavy), and readily available stocking pushrod. My last engine had 3/8", 0.120" wall pushrods. Indy CNC 440-1 heads, T&D rockers, 0.750" lift, 290/680 spring pressures. 7400 rpm (but smaller/lighter intake valve) This new B1 572 CID will be shifted lower.
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Re: Push Rods
[Re: 440Jim]
#2955722
08/20/21 03:11 PM
08/20/21 03:11 PM
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Joined: Jan 2003
Posts: 3,870
Smyrna, South Carolina
STEFF
master
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master
Joined: Jan 2003
Posts: 3,870
Smyrna, South Carolina
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Trend and Manton for Me! If I can use their stocking lengths, IE: 7" to 12" in .025" increments, I use Trend. If I need custom lengths, I use Manton, as their lead times are days. Use the largest diameter, thickest wall possible, even if you need to do some pushrod clearancing in the head. And you only need about. 010" clearance between the pushrod and hole. It's good to use the pushrod hole as a guide. Bigger the better = less deflection! I have 7/16 dia. - .165" Wall Trend Dbl Taper, ball to ball Pushrods, and yes its a stocking pushrod, in my Gen 3 Hemi and they're only 8.025" and 9.10" lg. respectively.
Last edited by STEFF; 08/20/21 03:13 PM.
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) ball and cup to a set of Manton series 3 3/8x.120 wall pushrods at 5000 RPM and up to 7500 RPM 
