Hi,
I need information on the piston selection for my build. I already have most of the parts ordered but having a hart time finding the right piston to achieve a good compression that will allow me to use regular pump gas.
here is the list:
Edelbrock cylinder heads EDL-61629 ( 60cc Combustion Chamber)
Edekbrock intake EDL-2171 ( dual plane )
Edelbrock carb 650 cfm 1826. (4 Barrels)
com camps dual energy cam CL32-206-3 203 int/216 exh (RV cam)
COMP Cams Magnum Steel Roller Tip Rocker Arms 1411-16
I already have the 400 crankshaft but pistons is where Im having difficult to find. Since the heads are 60cc I will probably need dished top pistons to stay with in 9.5~ 10:1 CR.
Any sugestion???
I already talked to Timothy Meyer but he no longer carries the TM/KB2344 (30cc didhed) since Aussie heads are not longer that plentiful.
thanks in advance.

 

even with flat tops they are down in the bore .090 to .100 if you leave the block alone. when i built mine 20 yrs ago i used the aussie heads and a larger cam which lowers the comp some but was still at almost 11-1. if your careful on the timing you can get away with regular.

 

it seems like I will be ordering some custom piston

 

Looks like you have a good bit invested in the motor already, but swapping these 351/400M engines for 385 series (429/460) isn't bad since the bell house is the same. There is quite a bit more off the shelf performance parts for the 385 series BB that the 351/400. Might be worth considering dependent on your custom piston set price.

 

Yo! have a qualified machine shop bush the small end of the rod to the size of a 351C wrist pin. Then you can use any 351C piston which has a lot more CR choices than a 400. Go forged pistons also.