Gold Lifetime Member
Join Date: Mar 2007
Location: Pittstown, New Jersey
Re: Advice on ZZ502 add-ons
I have spent the last few months replacing my 396 with a ZZ502 in my 68 coupe. I searched every site I could find for info. As far as the electric pump goes you need to make sure the pump has a flooded suction as they do not suck fuel very well. I think you will need to add a sump to your existing tank. I have the same exact long tube headers on mine. I made sure that I had the rite frame and trans brace for the big block and I still had to put a dimple in one of the tubes for the power steering box and a dimple for the upper control arm on the passenger side. You will also need to grind the flanges a little bit to clear the head bolts. And last but not least they have terrible clearance at the #3 & #5 spark plugs.
There are no problems only solutions
68 Camaro, RS/SS, ZZ502, Retrotek Fuel Injection, 4 Speed.
2010 RS/2SS Black, 6 speed trans