Re: .080 5/16 pushrod strenght
[Re: mopar dave]
#1189529
03/02/12 08:27 AM
03/02/12 08:27 AM
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Joined: Nov 2004
Posts: 4,330 Lynchburg, VA
Leon441
master
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master
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
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How long will the pushrods be? Longer the pushrod the weaker it is.
You will probably be OK. A lot depends on how aggressive the cam and how hard you are going to turn it. It may not break but deflection is a power killer.
Leon
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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Re: .080 5/16 pushrod strenght
[Re: dartman366]
#1189532
03/02/12 12:47 PM
03/02/12 12:47 PM
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Joined: Nov 2003
Posts: 6,293 Rock Springs
Bob_Coomer
master
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master
Joined: Nov 2003
Posts: 6,293
Rock Springs
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if you going to get new ones, get the thick wall pushrods... Manton has the bets prices usually and they are the best you can get. You can get stage III .120 wall for about $200 shipped.... Heck Indy wants $180 for a set of there cheapo, cut to fit .080 walls, and your still going to make them. I used Manton, for the 572 Hemi, and for the 560 CID wedge... both had Pacaloy springs, solid roller cams, with 800 lbs open pressure... I turned that wedge 8K a few times.
[color:"red"]65 Hemi Belvedere coming soon [/color] [color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]
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Re: .080 5/16 pushrod strenght
[Re: 40ford]
#1189535
03/02/12 02:25 PM
03/02/12 02:25 PM
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Joined: Jan 2007
Posts: 8,046 Mt Morris Michigan
mopar dave
OP
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OP
master
Joined: Jan 2007
Posts: 8,046
Mt Morris Michigan
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i dont remember the lenght,but close to stock lenght. indy 360-1 and 1.6 t&d rockers. 59* block. cam lift is .700/.680 solid roller. non oil tru. 5/16 is the largest that will fit.
Last edited by mopar dave; 03/02/12 02:56 PM.
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Re: .080 5/16 pushrod strenght
[Re: rickraw]
#1189537
03/02/12 09:30 PM
03/02/12 09:30 PM
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Joined: Jan 2003
Posts: 4,616 Kissimmee Fl.
dusturbd340W5
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master
Joined: Jan 2003
Posts: 4,616
Kissimmee Fl.
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I used the Manton 3 series 5/16x.120 wall with springs that where over 700# over the nose with no problems spinning the motor to 8000 and these where recommended by Terry Manton.
70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake
best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4
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Re: .080 5/16 pushrod strenght
[Re: mopar dave]
#1189539
03/02/12 11:01 PM
03/02/12 11:01 PM
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Joined: Nov 2010
Posts: 914 tn
robnbird
super stock
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super stock
Joined: Nov 2010
Posts: 914
tn
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Quote:
my valve springs are set up at 590# open pressure. would an .080" wall thickness 5/16 pushrod be ok or do i need something heavier?
don't take chances 590 spring pressure is enough to bend a 5/16 .080 PR. Go with a 3/8 .080.
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