email us at           Call us at 1 818 764-1901
Business Hours:   Mon-Fri. 9:00am - 4:30pm Pacific Time
Closed from 12:30-1:30 for Lunch. 
Phone: (818)764-1901
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These new pistons utilize a dedicated Forged Side Relief (FSR) forging that was specifically designed for high horsepower forced induction engines. In addition we have found ways to reduce weight and maintain the durability needed for both street and racing use. Lightweight and extremely durable, these pistons are machined for 1.0mm, 1.2mm, 2.8mm rings.
Dome/Dish requires no deburring or preparation and feature smooth flowing radii for excellent flame travel.
Pin fitting, wire locks, and rings included

Don't see what you need?  We will build a custom set of pistons for any application.  Just click here to send us a


Parts# Bore Oversize Stroke (mm) Rod (mm) C/D (mm) Head CC's C/R With .040 Dome CC's Included Ring Set Price
315146 3.642 STD 3.413 6.013 1.24 56 9 -8.6 JG1001-3642
315147 3.652 0.01 3.413 6.013 1.24 56 9 -8.9 JG1001-3652
315148 3.661 0.02 3.413 6.013 1.24 56 9 -9.3 JG1001-3661
315149 3.642 STD 3.413 6.013 1.24 56 10 -0.5 JG1001-3642
315150 3.652 ..010 3.413 6.013 1.24 56 10 -0.8 JG1001-3652
315151 3.661 0.02 3.413 6.013 1.24 56 10 -1.1 JG1001-3661

Thanks to all of you keeping us so busy the last few months we have to make a change to our Phone hours.

We can be reached via Phone Mon-Fri 10:00am to 3:00pm Pacific time. 

The Shop is open and we are working normal hours but we need those extra hours to catch up on Engine work, Carb rebuilding, and shipping. 

If you call before or after the hours of 10:00am - 3:00pm leave us a detailed  message and we will call you back. 
You can always shoot us an email at 
Obviously you are seeing this on the website so much of what you may need will be here...

Thanks for understanding and for all the support that is keeping us so busy....

Steve Nelson
Top-End Performance