designed to significantly reduce friction during operation

the head stud kit for a BMW S54 engine would be different from the one for a BMW M50 engine

SPRK-2521-2BM-T1

Coolant Block Off Back24

lubricate the block threads of the studs with ARP THREAD SEALER

CP Forged Piston Set, Toyota 1JZ-GTE 11121741467 designed to significantly reduce frictionThe CP Carrillo 1JZ GTE piston set is a high performance aftermarket piston set designed for the Toyota 1JZ GTE engine. CP Carrillo is a well known manufacturer of high performance pistons for various engines, and their Toyota 1JZ GTE piston set is designed to improve the engine's power, durability, and overall performance. The Toyota 1JZ GTE engine is used in several Toyota models from 1990 2007, including the MK III Supra, Chaser, Cresta and Mark II