Magnum Heads onto LA block

Yup, .525". Most performance roller cams are .550" and up. You can more lift on Magnum heads if you have the spring seats machined.
 
Magnums can take quite a bit of lift with just the right retainer. Hughes has a spring and retainer kit that can take somewhere around .560 lift without cutting the head.
 
80mirada said:
Magnums can take quite a bit of lift with just the right retainer. Hughes has a spring and retainer kit that can take somewhere around .560 lift without cutting the head.
Click to expand...

It used to be with the R/T springs and Mopar Performance retainers .525 was the max you could go without running into coil bind. Are you using factory valves?
 
brotherGood said:
If you're referring to the 318 with mag heads, ran (and still runs) great. The 5.9, I sold before ever doing anything with.

The 318 (and car) are currently up for sale because Dad has lost interest in the car, and I am busy with a 442. If I had room, I'd get it back because I'm fairly certain that 318 would smoke the 442 when it's done.
Click to expand...
What car is for sale with this 318?
 
I've got better springs and had wanted to try them, but we just ordered the same cam for my old 318 to be safe. Down the road I'd love to build a 360 mag so I'm not quite ready to come off the springs yet.. but then again after the headaches with the rebuild on the Olds, I may just find a JY 5.7 and go with that for the next Mopar build I have
 
Last edited:
greymouser7 said:
What car is for sale with this 318?
Click to expand...
My old 86 AHB. It sounds like Pops has gotten a renewed interest as of late though. It's scheduled to go in this week for a transmission rebuild/new converter, we just ordered new lifters/pushrods/cam since a bunch of lifters have collapsed from it sitting so long, and I've got an interior sitting in my garage for it.
 
brotherGood said:
My old 86 AHB. It sounds like Pops has gotten a renewed interest as of late though. It's scheduled to go in this week for a transmission rebuild/new converter, we just ordered new lifters/pushrods/cam since a bunch of lifters have collapsed from it sitting so long, and I've got an interior sitting in my garage for it.
Click to expand...
it's late, i'm tired, what is AHB reguarding FMJ's again? thanks
 
AHB is the code for Police pkg. It will be a code, on the fender tag.

AHB letters aren't actually an acronym for anything.
 
You must log in or register to reply here.
Back
Top