Pit Stop USA is The Online Motorsports Superstore! P-Ayr Products offers lightweight engine and transmission replicas that are perfect for race car fabrication. P-Ayr Products Lightweight Plastic Replica Engines, Plastic Cylinder Heads, Plastic Transmissions, Plastic Engine Parts and Accessories are a popular choice for race car builders. The question is often asked "Who would want a plastic replica engine?" There are many advantages of lightweight replicas because it's not always easy to get "the real thing". Many street rod and race car fabricators, performance retailers, and even major auto manufacturers themselves have found a myriad of uses for P-Ayr products. In the 12-year history of P-Ayr products have grow, from a single Chevy short block replica to now include over 150 engine replica part numbers. While many P-Ayr products are used for decorative or display purposes, each one is a faithful reproduction of the original, often with the cooperation of the original manufacturer. P-Ayr Products uses steel inserts for all bolt holes, and all specifications are held to OEM tolerances. You can bolt any factory component or accessory to a P-Ayr plastic replica engine and it will fit. That's why many P-Ayr replica engines and plastic replica transmissions are used to design and build chassis. They are perfect for mock-ups. P-Ayr Products endeavors to keep up with new products like the SB2 Chevy, Honda V-Tec and Mercury marine/truck engines. With this in mind, you can be sure P-Ayr Products will be continually tooling for what's new. By the same token, P-Ayr Products is always looking into reproducing scarce "vintage" engines with popular appeal. The flathead Ford / Ardun and 348 / 409 Chevy engines are typical of this commitment.