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82 GT · 10-04-2005, 06:50 AM

The firing order are thge same.
Your B cam won't work in your 351w unless you convert it to a roller block like the 86-95 5.0 engines.
They will interchange if both blocks are non-roller blocks(pre-86)
In other words, they must both be "roller" blocks to interchange.
The heads will interchange but not wothout modifications to your 302 block. It must be drill out to accept the 1/2 bolts that are used on the 351w. The 302 heads use 7/16 bolts.

I'll let somone else explain the "M" motor cause I gotta go!
Hope this helps

10-04-2005, 06:50 AM	#18
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Re: 351 in a 90 LX The firing order are thge same. Your B cam won't work in your 351w unless you convert it to a roller block like the 86-95 5.0 engines. They will interchange if both blocks are non-roller blocks(pre-86) In other words, they must both be "roller" blocks to interchange. The heads will interchange but not wothout modifications to your 302 block. It must be drill out to accept the 1/2 bolts that are used on the 351w. The 302 heads use 7/16 bolts. I'll let somone else explain the "M" motor cause I gotta go! Hope this helps __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.