Lots of performance parts on my LA 360 - let's build my Magnum / Stroker

My goal is a to have a 408 Magnum Stroker with EFI - I'd love to hear everyone's thoughts on what I currently have and what can be transferred to this new engine. This will be a 98% street car. I'm trying to bridge the gap and come with a realistic budget but it makes it interesting since I have a fair amount of transfer friendly parts.

This sounds like fun!
Builder engine: - 2002 360 Magnum - M1 Dual Plane Intake (Magnum)

Current engine: - 1976 360 LA - M1 Intake - HEI Distributor - EQ Heads
Current trans - A500 with 9.5" 3200 stall converter
Current rear: - 8.75 (742) with 3.91 gear (245/45/18 tire)

Wishlist: Scat stroker kit - EFI
Well you certainly have some good parts to start with. As asked above, pictures of the intakes please. Are both M1’s are dual plane?
You have a lot of stall for the camshaft below. I run a similar one in the wife’s car. It is a great driver with good power. It’s not setting the house on fire, but it makes the car run really well.

  • Previous owner installed a set of 2.02/1.62 EQ heads on the LA Engine drilled for LA intakes. I assume these will transfer without issue.
  • Previous owner had a custom Comp roller cam ground on an LA blank - specs are: 224/230 .050" and .513 lift I/E on 110 LSA - ground for 1.6 rockers. Would this be good fit for the 408 Magnum? Any issue that anyone can foresee?
  • With the roller cam, he also opted for a set of retrofit Hughes LA roller lifters ($$) - can these be used in the Magnum with the EQ heads? Or would I be better off using the OE lifters here?
  • I have a pair of M1 intakes - I'd obviously use the LA style with the EQ heads - is this an adequate intake for my plan or would I further benefit from a RPM Air Gap or other suggestion?
  • Current engine has a Coyes index timing chain - will this transfer to Magnum?
If you need any other details to clarify anything - I'll report back. Bare with me as I'm a bit green to this process - thanks.
1: There should be no issues with the head transfer as mentioned above.
2: The cam is small for a 408. It will make a LOT of torque. Be an absolute driver. Depending on the head capabilities, a stock head could make an easy 360 hp.
3: The Hughesengines roller lifters are probably much lighter and worth the use. There’s nothing wrong with them or the heavier LA lifters.
4: The RPM is a better bet. The M1 single plane would loose a bit of torque against the RPM below the 3500 rpm area. This rpm spot is give or take a few hundred.
5: The timing chain will swap.