Pro-Series Normally Aspirated Pistons for Stock Length Rods
Not sure it fits your engine? Call (909) 539-0544 or send us a message.
Ships by UPS or FedEx. Rates are shown at checkout.
Please confirm stock on large orders. Availability can change quickly.
Our Pro-Series N/A Pro R pistons are custom made for us by our partner JE Pistons. These pistons are machined from 2618 Alloy forgings, not the more fragile 4032 Alloy like some other companies offer. These are the same pistons used in the engines we build.
Standard features:
Extra deep valve reliefs are big cam friendly
Valve reliefs fit oversize valves upto 38.8mm (intake) & 33mm (exhaust)
Optimized 1.065" (27mm) compression height
Upgraded 9310 wristpins included at no extra charge
H.D. extra thick Wire-Loc's
Requires 1mm, 1.2mm, 2.8mm ring sets (not included)
Bore size options:
93mm (new blocks, or sleeved blocks)
93.078mm (allows a good torqueplate hone)
93.5mm (for blocks that require a large amount of cleanup)
Compression Ratio Options:
12.5:1 pump gas n/a engines
14:1 for all-out race n/a engines
*** While some of these pistons are kept in stock, we don't have the space in our inventory for pistons of all specs. The non-stocked pistons are made to order and require 6-8 weeks manufacturing lead time. Please call or e-mail us to check on inventory stock levels on the pistons you are looking at if you're in a time crunch. ***