moparguy440
Member
ok here the deal I have a 75 big block 400 low miles I was going to stroke it to a 470 and drop it in my 70 dart but after getting it all apart the bearing all look good rod and mains,,so im thinking of building a beefy 400 taking it .040 h beam rods after market steel crank and aluminum heads a good forged piston 10:5 or above and huges .576 .584 cam,heres the ? has anyone ran or running the aftermarket aluminum heads imported from china there 500 cheaper than brock heads and are saying and showing same specs hate to spend 900 for a junk import head