Cut to length Pushrods - Moparts Forums

Register Log In Moparts Forums Moparts Question and Answer Cut to length Pushrods

Print Thread

Page 1 of 2

1

2

Cut to length Pushrods #609771 02/10/10 04:26 PM 02/10/10 04:26 PM
Joined: Nov 2007 Posts: 1,476 Oh RacerGofKGB OP Got The Big One
RacerGofKGB OP Got The Big One Joined: Nov 2007 Posts: 1,476 Oh	Who has purchased the cut to length pushrods? I need to buy some pushrods and am considering buying a set of these and cutting them down. Does anybody have any hints or tips before i cut them all too short and have to buy another set?

Re: Cut to length Pushrods [Re: RacerGofKGB] #609772 02/10/10 04:37 PM 02/10/10 04:37 PM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	Measure twice - cut once. I got mine from Hughes.

Re: Cut to length Pushrods [Re: MoparforLife] #609773 02/10/10 06:17 PM 02/10/10 06:17 PM
Joined: Nov 2007 Posts: 305 5th and plum R redmist enthusiast
redmist enthusiast R Joined: Nov 2007 Posts: 305 5th and plum	Is this for a B engine or an RB? I have a set for sale on the fore sale thread here that go in a B engine.. Stock length but with a ball and cup for adjustables.

Re: Cut to length Pushrods [Re: redmist] #609774 02/10/10 10:33 PM 02/10/10 10:33 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	iirc you want the right length pushrod, for the pushrod and adj screw to be a straight line (viewed from the front of the eng) w (1) or (2) threads showing (just the bare minimum so the cup doesn't hit the rocker anywhere in the travel range) when your particular cam is @ either 40 or 50 or 60% (I forget which & depends on if SB or BB not on the cam) of max lift w the head mocked up on the deck w the intended thickness of head gasket. You would fab/borrow/buy an adjustable pushrod so you could adj it's length until the imaginary line is straight. this is tied into the wipe pattern from the pedestal height/rocker ratio so definitely check further. EDIT it's 60% for SB (50% BB) and that's 60% (OF WHAT THE VALVE SEES RATHER THAN 60% OF CAM LOBE LIFT) so the rocker ratio (1.5 or 1.6) is being taken into acct) Last edited by RapidRobert; 02/11/10 11:53 AM. live every 24 hour block of time like it's your last day on earth

Re: Cut to length Pushrods [Re: RacerGofKGB] #609775 02/10/10 10:59 PM 02/10/10 10:59 PM
Joined: Apr 2005 Posts: 1,322 Michigan C crlush pro stock
crlush pro stock C Joined: Apr 2005 Posts: 1,322 Michigan	I cut mine twice and they were still too short.

Re: Cut to length Pushrods [Re: crlush] #609776 02/10/10 11:07 PM 02/10/10 11:07 PM
Joined: Feb 2005 Posts: 4,884 Michigan MNobody master
MNobody master Joined: Feb 2005 Posts: 4,884 Michigan	Why not just buy ones that are the right length and be done with it?

Re: Cut to length Pushrods [Re: RacerGofKGB] #609777 02/10/10 11:08 PM 02/10/10 11:08 PM
Joined: Dec 2007 Posts: 7,759 So Cal HealthServices Why would you even post that?
HealthServices Why would you even post that? Joined: Dec 2007 Posts: 7,759 So Cal	It�s been a while but I have mine made to my specs. I bought a adjustable pushrod to find the ideal length then measured and bought the pushrods. Look up smithbros. pushrods. they have a guide for determining the right length pushrod. Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.

Re: Cut to length Pushrods [Re: MNobody] #609778 02/11/10 12:36 AM 02/11/10 12:36 AM
Joined: Feb 2003 Posts: 21,318 Manitoba, Canada DaytonaTurbo Too Many Posts
DaytonaTurbo Too Many Posts Joined: Feb 2003 Posts: 21,318 Manitoba, Canada	Quote: Why not just buy ones that are the right length and be done with it? Because there is no such thing if you have a milled deck, milled heads then combined with a large assortment of head gasket thickness choices.

Re: Cut to length Pushrods [Re: DaytonaTurbo] #609779 02/11/10 01:24 AM 02/11/10 01:24 AM
Joined: Apr 2009 Posts: 228 northeast texas S strokin73cuda enthusiast
strokin73cuda enthusiast S Joined: Apr 2009 Posts: 228 northeast texas	Quote: Quote: Why not just buy ones that are the right length and be done with it? Because there is no such thing if you have a milled deck, milled heads then combined with a large assortment of head gasket thickness choices. Smith Bros Can http://www.pushrods.net/pdffiles/pushrods.html 496 stroker,Indy srs , new best 6.87 @ 98 1.46 60'

Re: Cut to length Pushrods [Re: RacerGofKGB] #609780 02/11/10 02:13 AM 02/11/10 02:13 AM
Joined: Jan 2003 Posts: 1,978 Southaven, MS B BossRide top fuel
BossRide top fuel B Joined: Jan 2003 Posts: 1,978 Southaven, MS	While by no means a high horse power application, my 360 has adjustable pushrods. So far, so good.. and I wind it up pretty tight from time to time. Just a thought... The Blue Goose My instagram: Bossride

Re: Cut to length Pushrods [Re: BossRide] #609781 02/11/10 07:19 AM 02/11/10 07:19 AM
Joined: Nov 2007 Posts: 1,476 Oh RacerGofKGB OP Got The Big One
RacerGofKGB OP Got The Big One Joined: Nov 2007 Posts: 1,476 Oh	I already bought an adjustable pushrod, so i will be able to mock one up. I was planning on setting it up in a few different places on each side and getting an average. " Why dont i just buy them already cut to length?" I thought this route may be a little less expensive(although more time consuming). And i would feel far superior to all of my friends who have never made their own pushrods.

Re: Cut to length Pushrods [Re: RacerGofKGB] #609782 02/11/10 11:15 AM 02/11/10 11:15 AM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	Quote: . And i would feel far superior to all of my friends who have never made their own pushrods. Absolutely!, priceless! that's why I'm fabbin a set of headers. This is from Hughes', when you get the straight line AND if the wipe pattern is good,(& no interference anywhere) your set. I'd suggest using a hyd lifter w the cup epoxied shut (to duplicate what you are running & I'm assuming hyd lifters) and I have a Q for you would it make sense to epoxy the cups .030" down to match where they will be?? (assuming .030" preload is a good figure). EDIT hughes states that the wipe pattern is more important than an exact straight line and no interference anywhere over the entire travel range is (obviously) #1 Last edited by RapidRobert; 02/11/10 12:12 PM. live every 24 hour block of time like it's your last day on earth

Re: Cut to length Pushrods [Re: RapidRobert] #609783 02/11/10 11:36 AM 02/11/10 11:36 AM
Joined: Feb 2005 Posts: 283 N.E. England Roppa440 super street
Roppa440 super street Joined: Feb 2005 Posts: 283 N.E. England	Take your time to get one rod dead right. Then use it to mark and measure all the rest. Cut 1mm or so too long and file down to size making sure you are square. Clean the edges and put a very slight 45 degree angle on the inside edge to help you get the cup started. Don't hammer the cup on and bend the rod. 1-2 threads showing under the rocker is ideal. Double check there is no contact between the cup and rocker at any point of its travel. 2002 Chevrolet Corvette 5.7 LS1 2011 Alpha Romeo Giulietta Veloce 1.6 JTD Because running a Mopar in the UK is getting TOO expensive!!

Re: Cut to length Pushrods [Re: Roppa440] #609784 02/11/10 09:18 PM 02/11/10 09:18 PM
Joined: Nov 2007 Posts: 1,476 Oh RacerGofKGB OP Got The Big One
RacerGofKGB OP Got The Big One Joined: Nov 2007 Posts: 1,476 Oh	Can you pull the cup back off once you have pressed it onto the rod?

Re: Cut to length Pushrods [Re: RacerGofKGB] #609785 02/12/10 12:55 AM 02/12/10 12:55 AM
Joined: May 2008 Posts: 5,399 Aurora, Colorado 451Mopar master
451Mopar master Joined: May 2008 Posts: 5,399 Aurora, Colorado	You can cut them a bit longer, and grind the cut end down to the size you need before installing the end. When you grind the end, just chuck the pushrod in a drill and spin the pushrod while grinding it to keep the end square.

Re: Cut to length Pushrods [Re: 451Mopar] #609786 02/12/10 01:24 AM 02/12/10 01:24 AM
Joined: Dec 2007 Posts: 7,759 So Cal HealthServices Why would you even post that?
HealthServices Why would you even post that? Joined: Dec 2007 Posts: 7,759 So Cal	Quote: You can cut them a bit longer, and grind the cut end down to the size you need before installing the end. When you grind the end, just chuck the pushrod in a drill and spin the pushrod while grinding it to keep the end square. Just seems lot a lot of room for error. If all the push rods will end up being just one or two sizes for the whole motor I would just have them made to order. Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.

Re: Cut to length Pushrods [Re: HealthServices] #609787 02/13/10 10:21 AM 02/13/10 10:21 AM
Joined: Nov 2007 Posts: 1,476 Oh RacerGofKGB OP Got The Big One
RacerGofKGB OP Got The Big One Joined: Nov 2007 Posts: 1,476 Oh	Does anyone know if the cups can be removed once you press them on? Or will you end up screwing up the cup and/or rod trying to remove it?

Re: Cut to length Pushrods [Re: RacerGofKGB] #609788 02/13/10 10:47 AM 02/13/10 10:47 AM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	Quote: Does anyone know if the cups can be removed once you press them on? Or will you end up screwing up the cup and/or rod trying to remove it? I think it'd be if you could grip the cup in some fashion w enough clamping as to not damage it, the PR would be unaffected. Mine I did were not pressed in to tight iirc. That is an excellent idea to lightly chamfer the ID before pressing the new tip in. You might clamp the PR in the vise w something around it to protect it and w vice grips w a rag to protect the cup start easy & see how tight (or easy) it is in there & use your own good judgement how tight you want to clamp it & if individual cut to fit ones are available seperately then you dont have to be so gentle with it as if you screw it up another one is easily (cheaply) available to replace it. And you might find it easily comes out for you. live every 24 hour block of time like it's your last day on earth

Re: Cut to length Pushrods [Re: RapidRobert] #609789 02/13/10 10:59 AM 02/13/10 10:59 AM
Joined: Jun 2004 Posts: 6,780 Alabama Mopar-Al master
Mopar-Al master Joined: Jun 2004 Posts: 6,780 Alabama	We put them in a lathe, back cut under the cap, and then bevel the pushrod to re install. I did 3 sets this way with no issues. It really is quite simple

Re: Cut to length Pushrods [Re: Mopar-Al] #609790 02/13/10 12:22 PM 02/13/10 12:22 PM
Joined: Nov 2007 Posts: 1,476 Oh RacerGofKGB OP Got The Big One
RacerGofKGB OP Got The Big One Joined: Nov 2007 Posts: 1,476 Oh	Quote: We put them in a lathe, back cut under the cap, and then bevel the pushrod to re install. I did 3 sets this way with no issues. It really is quite simple So you took pre-made pushrods(or ones with the cap already installed) and cut below the cap and then reinstalled the caps? I have a lathe, and i was planning on using it to cut down my rods. im sure it will do a lot cleaner job than trying to do it with a bench grinder or something else.

Page 1 of 2

1

2

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1