[hooknreel]

IM building motor for my 64 ,454 block bored .60 crank is a 4.250, rods are 6.385 Way i seen it at KB website i need a kb787 .060 but cant find the pistons in Probe or TRW or Speed pro or srp any help thanks ray

 

[Tom Mobley]

that's the standard run of the mill 489-496 piston. shouldn't be any problem?

 

[Mike]

http://www.flatlanderracing.com/trwchevyspecial.html

 

[bbm]

Srp 212157 4.310 bore (+.060) 4.250 stroke 6.385 rod 1.270 comp. Hgt. 18cc dome 112cc=10.7 comp 118cc=10.2 comp $552 is jobber price

 

[hooknreel]

Thank you very much

 

[Guest]

Remember, you HAVE to cc your heads and then match headgasket thickness to the quench number so that you end up w/ your wanted CR.

For a rough example, and as always depending, a flat-top pistoned 454 w/ -781 open chambered head's on it will be down around 8 to 1. Install an old set of -206 closed chambered head's and you will be up a tad over 9 to 1.

pdq67

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