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magnum head conversion pushrods still available? #1421921 04/18/13 11:00 PM 04/18/13 11:00 PM
Joined: Oct 2010 Posts: 162 Iowa T tt76400 OP member
tt76400 OP member T Joined: Oct 2010 Posts: 162 Iowa	Have 2 small block budget builds going, one of them may be a magnum head swap on an earlier 318 shortblock, I am having difficulty locating the correct pushrods for this swap, I know MP used to offer them, but I cannot locate them anymore, are they still available, or are alternatives out there?

Re: magnum head conversion pushrods still available? [Re: tt76400] #1421922 04/18/13 11:12 PM 04/18/13 11:12 PM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	IIRC, a few had said those are a tad short and used another length PR maybe patrick or someone that saved the info will chime in. seems like they mention a ferd PR for the fix??? I will write it down this time for sure.

Re: magnum head conversion pushrods still available? [Re: scratchnfotraction] #1421923 04/18/13 11:41 PM 04/18/13 11:41 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	Quote: a few had said those are a tad short and used another length PR. seems like they mention a ferd PR for the fix??? X2. I'd wait & mock it up & see what exact length you need with a checking (adjustable) pushrod for .020-.030" preload with 1&1/2 threads showing (if using adj rocker arms) & see if an off the shelf pushrod is available in that length or how close to it you can come & go from there. EDIT there's some 7.375" ball/ball oil thru ones for $75 to your door & some 7.5" P4529555 ball/cup for $60 to your door in the for sale section. MORE EDIT My MP catalog says the P4529555 ones are 7.34". I believe you measure to the bottom of the cup which might explain that. Last edited by RapidRobert; 04/19/13 04:58 AM. live every 24 hour block of time like it's your last day on earth

Re: magnum head conversion pushrods still available? [Re: RapidRobert] #1421924 04/19/13 10:17 AM 04/19/13 10:17 AM
Joined: Jan 2003 Posts: 16,123 Grand Haven, MI patrick I Live Here
patrick I Live Here Joined: Jan 2003 Posts: 16,123 Grand Haven, MI	Quote: Quote: a few had said those are a tad short and used another length PR. seems like they mention a ferd PR for the fix??? X2. I'd wait & mock it up & see what exact length you need with a checking (adjustable) pushrod for .020-.030" preload with 1&1/2 threads showing (if using adj rocker arms) & see if an off the shelf pushrod is available in that length or how close to it you can come & go from there. EDIT there's some 7.375" ball/ball oil thru ones for $75 to your door & some 7.5" P4529555 ball/cup for $60 to your door in the for sale section. MORE EDIT My MP catalog says the P4529555 ones are 7.34". I believe you measure to the bottom of the cup which might explain that. best way is to measure and then go to summit and see if you can find some pushrods the right length....with so many things that could alter pushrod length (has the block been decked? have the heads been shaved? head gasket thickness? is the cam a reduced base circle?, etc).... if you are running a hydraulic roller and need pushrods just slightly longer than OEM magnum ones, these work great (.024-.036" longer depending on what you read nominal magnum pushrod length is) and are cheap at $30 for a set of 16. they're what I used on mine with a reground roller cam http://www.summitracing.com/parts/cca-7828-16/overview/ 1976 Spinnaker White Plymouth Duster, /6 A833OD 1986 Silver/Twilight Blue Chrysler 5th Ave HotRod SOLD!* 2011 Toxic Orange Dodge Charger R/T 2017 Grand Cherokee Overland 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)

Re: magnum head conversion pushrods still available? [Re: patrick] #1421925 04/19/13 12:21 PM 04/19/13 12:21 PM
Joined: Aug 2010 Posts: 164 mesa arizona moturbopar member
moturbopar member Joined: Aug 2010 Posts: 164 mesa arizona	I found that boss 302 pushrods, worked perfectly in MY magnum head 360 conversion. part # elgin PR-278s Picked up new set for under $35 here is a chart that shows the sizes they have. http://catalog.elginind.com/app/engine_tech.asp?category=Push+Rods+by+Finish+Size

Re: magnum head conversion pushrods still available? [Re: moturbopar] #1421926 04/19/13 12:24 PM 04/19/13 12:24 PM
Joined: Oct 2010 Posts: 162 Iowa T tt76400 OP member
tt76400 OP member T Joined: Oct 2010 Posts: 162 Iowa	Thanks to all for the info, just what I needed!

Re: magnum head conversion pushrods still available? [Re: tt76400] #1421927 04/19/13 10:50 PM 04/19/13 10:50 PM
Joined: Jan 2003 Posts: 1,482 Lake Orion, MI goldduster318 pro stock
goldduster318 pro stock Joined: Jan 2003 Posts: 1,482 Lake Orion, MI	I used Summit 7.650" pushrods and they have worked well for the last 5 years. '70 Duster 470hp 340/T56 Magnum/8 3/4 3.23 Sure-Grip

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