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d21hardbody
03-29-2009, 12:03 AM
does anybody know what pistons come in the ford racing gt-40 crate motor,the reason im asking is it come with gt-40x heads an one of them ended up cracking,so i didnt have any money so i put some e7s back on it,an now i got a set of the big vavle edelbrock performers wondering if the vavle notches is big enough?
QWKSNKE
03-29-2009, 08:36 AM
which crate motor? or more specifically which cam is in the engine now
militarymustang88gt
03-29-2009, 02:32 PM
check the piston to valve clearance.
d21hardbody
03-29-2009, 07:16 PM
it came with the b cam an now i got a comp extreme energy 282 565/574 lift
coupe
03-29-2009, 08:14 PM
Probe is in all the crate motors as of now...not sure when they started, but you can call them.
d21hardbody
03-30-2009, 02:59 AM
the motor come from jegs in 03 i know its got hyper pistons
coupe
03-30-2009, 11:18 AM
Okay...I stand corrected: Probe pistons are currently used in the 347, 351W, and 460 FRPP crate motors; starting in around 2003. Before that, those engines had Speed Pro pistons...

As for your 302 "GT40" engine, I would suspect it has Speed Pro's in it... but you'll still have to check the PTV clearance no matter the brand. It'll either go or no go. :nice:
d21hardbody
03-31-2009, 03:29 AM
thanks
militarymustang88gt
04-04-2009, 02:13 AM
wasnt speed pro bought out by probe?
LeeH
04-07-2009, 09:25 PM
wasnt speed pro bought out by probe?

Not that I am aware of and I know Mark Oneal fairly well.