Athena 83-84 Yamaha IT 490 Top End Gasket Kit 2019-gmc-sierra-1500-sle-esi6937140 ARP 68-69 AMC 390 3/8in

ARP 68-69 AMC 390 3/8in Rod Bolt Kit

stainless steel tip with intercooling vents to reduce EGT's at the tailpipe and are badged with laser-cut aFe POWER plates riveted on

Dual Muffler w/3 Way Tuned Collector

BM14-XTSS kit features an Xtreme pressure plate for the most demanding driver

Athena 83-84 Yamaha IT 490 Top End Gasket Kit 2019-gmc-sierra-1500-sle-esi6937140 ARP 68-69 AMC 390 3/8inAthena's gasket kits are entirely engineered in Italy with a strong base of internal know how. Each piece is produced following strict parameters imposed by manufacturers and the use of latest generation lasers guarantees perfect cutting quality. Athena performs surface treatments to compensate irregularities and follows material stress relieving processes to improve sealing in the most critical areas. Perfect interchangeability with the original