Well my hybrid Mopar small block was a success! My top end after 5000kms and 30 plus passes.
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- Опубліковано 9 лют 2025
- After a good season of street use and drag strip use, my hybrid Mopar LA/Magnum hybrid dud just what I expected it would do. Check out the video for all yhe details!
Cley
#garagenation #nonamenationals #godriveit #garageessentials #
Well keep us posted on what you come up with on the diag of the pushrod problem.
I am working on it right now!
Very interested to do this someday. I’m glad you mentioned the pushrod deal. I have a retrofit roller lifter 360 coming up with 72 model heads that will likely need some work in the pushrod holes
I'm just glad I checked it over. It would have been a bad day if it started breaking push rods! I'm pulling the heads right now to clearance them push rod holes. It is amazing that there is no apparent wear on the aluminum cylinder head, but the steel push rod has a major groove wore in it. I would have thought the aluminum would be softer and wear first.
It was out a 2003, but that's not important.
Thanks for the update my friend its crazy that you had this video uploaded right after my comment! I have a pre-magnum roller cam block that is running J-head's that have had very extensive work done around the pushrod hole which I presume was necessary, but I don't know this for certain because I wasn't the one who did the engine. I've never ran this engine and the guy I bought it from kept the rockers so I'm not sure how close the pushrods come to anything. I wish I could share a pic with you of what someone has done to these heads. You have me wondering if what they had done was needed or not?
When you get your rockers, just put the valve train together with the intake removed. You will be able to tell that way if the push rods interfere with the push rod holes. They will interfere on the side closest to the lifters if at all.
Thanks for the video. I'm going through exactly same thinking process what you have already done. What were those rocker arms exactly? Are there some equivalent rocker arms that would work also?
The ones I ended up using were from Comp Cams. Check out this page from Summit Racing www.summitracing.com/parts/cca-1622-16/make/dodge They work with stock length Magnum push rods.
Pretty much any aftermarket rocker, or even old 273 rockers should work. Just need to be sure the oil passage from the push rod through the rocker arm is clear. The most important part for that is push rod length. I will be making a few different types of rockers work in a future video.