magnum vs LA parts question

Posted By: a493demon

magnum vs LA parts question - 01/14/22 02:36 AM

Is the LA and Magnum timing chain the same ?
Also what B&M flex plate are you using on the magnum with a 727 ?
Thanks , haven't messed with SB stuff in 25 years .

Posted By: Guitar Jones

Re: magnum vs LA parts question - 01/14/22 02:44 AM

Magnums have a short snout camshaft because they don't have a fuel pump eccentric. The sprockets and chains can be swapped but the attaching bolt and washer is different, all magnums come with a silent link chain.
As for the flex plate B&M should know, I don't.

Posted By: dvw

Re: magnum vs LA parts question - 01/14/22 01:17 PM

The Magnum and LA are balanced differently. B&M flex plate for the Magnum is 10242. There is a cam snout adapter to run a mechanical the fuel pump with a Magnum cam and LA front timing cover. You need a 45 degree adapter at the bypass hose to run the LA front cover.
Doug

Posted By: a493demon

Re: magnum vs LA parts question - 01/14/22 10:59 PM

thanks

Posted By: 1Fast340

Re: magnum vs LA parts question - 01/15/22 06:55 PM

Originally Posted by dvw

The Magnum and LA are balanced differently. B&M flex plate for the Magnum is 10242. There is a cam snout adapter to run a mechanical the fuel pump with a Magnum cam and LA front timing cover. You need a 45 degree adapter at the bypass hose to run the LA front cover.
Doug

I believe only the 5.9/360 magnum require a specific flexplate.
I also believe the 5.2/318 Magnum is internaly balanced.

Posted By: a493demon

Re: magnum vs LA parts question - 01/16/22 02:49 PM

Originally Posted by 1Fast340

Originally Posted by dvw

The Magnum and LA are balanced differently. B&M flex plate for the Magnum is 10242. There is a cam snout adapter to run a mechanical the fuel pump with a Magnum cam and LA front timing cover. You need a 45 degree adapter at the bypass hose to run the LA front cover.
Doug

I believe only the 5.9/360 magnum require a specific flexplate.
I also believe the 5.2/318 Magnum is internaly balanced.

I have a 360 but that's good to know