keeping fuel injection or going carb? intake needs a magnum bolt pattern.

make sure the later magnum block has the front mount/lugs on the block, they went away later models. IIRC

you want LA timing/pullys/brackets? it all swaps to magnum. alt mount? IIRC a hole maybe missing on end of head for LA mounting. not sure what the fix is here.

need a fuel pump extension kit from Hughes to run a mech FP eccentric on the short nose magnum roller cam behind the LA cover.

FYI..cam bolt/cup washer for magnum is short with no FP eccentric.

FYI.. to run a magnum cover on a LA engine/cam you grind the eccentric 1/2 the thickness and use LA bolt/washer/eccentric ** you clearance the mag cover to LA fp eccentric to fit.

or keep magnum serp belt/accessories PS pump hose end change to fit steer box

FYI..cam change? order up a long nose roller cam for mech FP/LA cover.

you can use a LA valve cove with 5 bolts on magnum head with 10 bolt holes FYI- fel pro has a 5 hole gasket for magnum head and LA cover.

dist. swaps LA to magnum no issues here

LA headers/mannys fit magnum head IIRC you cant use the magnum mannys in the LA/truck