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When to go to 3/8 pushrods? #1208685 04/02/12 10:40 PM 04/02/12 10:40 PM
Joined: Feb 2003 Posts: 21,318 Manitoba, Canada DaytonaTurbo OP Too Many Posts
DaytonaTurbo OP Too Many Posts Joined: Feb 2003 Posts: 21,318 Manitoba, Canada	When should one go to 3/8 pushrods? I'm installing a solid cam that calls for springs 136 lbs @ 1.880 installed height. Rockers are crane roller rockers, haven't bought pushrods yet.

Re: When to go to 3/8 pushrods? [Re: DaytonaTurbo] #1208686 04/02/12 10:47 PM 04/02/12 10:47 PM
Joined: Jan 2003 Posts: 75,098 A Banana Republic near you. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,098 A Banana Republic near you.	What is your open pressure ?

Re: When to go to 3/8 pushrods? [Re: JohnRR] #1208687 04/02/12 11:41 PM 04/02/12 11:41 PM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	Smith Bros in Bend Or. The best place to go... http://www.pushrods.net/ Last edited by 340SHORTY; 04/03/12 02:07 AM. I am truckless..

Re: When to go to 3/8 pushrods? [Re: 340SHORTY] #1208688 04/03/12 12:12 AM 04/03/12 12:12 AM
Joined: Aug 2003 Posts: 43,317 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,317 Bend,OR USA	Quote: Smith Bros in Burns Or. The best place to go... http://www.pushrods.net/ Me thinks you mean Bend, OR. Burns is east of us about 160 miles, Smith Bros is 5 miles from my shop here in Bend, OR Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: When to go to 3/8 pushrods? [Re: Cab_Burge] #1208689 04/03/12 12:19 AM 04/03/12 12:19 AM
Joined: Mar 2010 Posts: 1,880 Out in Left Field, NY B bobs66440 top fuel
bobs66440 top fuel B Joined: Mar 2010 Posts: 1,880 Out in Left Field, NY	Smith Bros. has the specs and recommendations based on your engine/valve train specs.

Re: When to go to 3/8 pushrods? [Re: bobs66440] #1208690 04/03/12 12:44 AM 04/03/12 12:44 AM
Joined: Jan 2007 Posts: 7,664 IN A ahy master
ahy master A Joined: Jan 2007 Posts: 7,664 IN	From what I've seen, pushrods can help improve power. Less deflecion and lower harmonics help. Plus for any given weight, larger diameter will be stiffer. If you have to buy them anyhow, 3/8" is worthwile. If major head clearancing or significant added cost is involved maybe not for your application. I know with similar (closed I assume) pressures I went 3/8". Little to no added cost and no clearancing required.

Re: When to go to 3/8 pushrods? [Re: ahy] #1208691 04/03/12 02:09 AM 04/03/12 02:09 AM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	I feexed it.. LOL I am truckless..

Re: When to go to 3/8 pushrods? [Re: 340SHORTY] #1208692 04/03/12 02:52 AM 04/03/12 02:52 AM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	I had to get longer pushrods for my 493 so I ordered the 3/8 pushrods from 'Manton". Had them in 2 days and they are a top notch piece. Ron Last edited by 383man; 04/03/12 02:53 AM.

Re: When to go to 3/8 pushrods? [Re: 383man] #1208693 04/03/12 05:10 AM 04/03/12 05:10 AM
Joined: Aug 2004 Posts: 8,087 Elk Grove, Calif. B bigblock340power master
bigblock340power master B Joined: Aug 2004 Posts: 8,087 Elk Grove, Calif.	Don't make the mistake of scrimping. I was useing the smaller push rods for a while. Bent two, busted one. I got a set of 3/8's Smiths and all is well. I'm only running a 508, with 1.6 roller rockers. So go from there.

Re: When to go to 3/8 pushrods? [Re: bigblock340power] #1208694 04/03/12 06:25 AM 04/03/12 06:25 AM
Joined: Jan 2003 Posts: 21,086 Niles , Ohio T therocks oh wait.but hey.lets see.oh yeah.
therocks oh wait.but hey.lets see.oh yeah. T Joined: Jan 2003 Posts: 21,086 Niles , Ohio	I went to Crane 3/8 alloys back in the 70s.I was running a small .500 lift hyd cam at the time with adjustable rockers.I still have that set as I went solid in the late 80s.They werent much more than 5/16s.I think the set was like 90 bucks when I bought them. Chrysler Firepower

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