Stroker Kits
Stroker Kits
Spool Imports stroker kits are built around the requirements of performance street, motorsport and workshop engine builds. A stroker kit changes crankshaft stroke and pairs the crankshaft with compatible conrods and pistons to suit the block, bore, compression ratio and intended use. The complete combination still needs to be checked by the engine builder for deck height, piston-to-valve clearance, crank and rod clearance, and final assembly measurements.
Depending on the engine platform, a kit may include a SPOOL billet 4340 or nitrided crankshaft, forged conrods, CP or Ross Racing pistons, rings, gudgeon pins and locks. Selected kits also offer ACL main and big-end bearings, ARP fastener upgrades and piston options for bore size or compression ratio.
Stroker kit applications
The range covers engine platforms including Nissan RB25, RB26, RB30, RB32, RB34, TB48 and TD42; GM LS; Ford Barra and XR6 Turbo; Toyota 1JZ, 2JZ, 1FZ, 3RZ and related 1UZ-FE combinations; Mitsubishi 4G63; Subaru EJ20 and EJ25; and Nissan SR20 and CA18 applications. Check the individual listing for the exact crank stroke, piston specification, rod option, required hardware and availability.
Why buy from Spool Imports?
Spool Imports designs and supplies SPOOL forged H-Beam and I-Beam conrods, billet crankshafts and complete engine kits, with supporting components from CP, Ross Racing, ACL and ARP. This allows builders to select the rotating assembly and supporting parts around the actual engine combination rather than combining incompatible components. Product listings identify available options and known installation requirements, including cases where block clearancing, balancing or additional machining may be required.
Before ordering, confirm the engine code, block condition, target bore and compression ratio with the machinist or engine builder. If the required piston, bearing or fastener combination is not listed, contact Spool Imports for application and availability advice.
