COMP Cams 54-450-11 GM LS 4.8L 5.3L 5.7L 6.0L Camshaft and Pac Beehive Valve Spring KitCAM PN: 54 450 11 Specs: Duration @. 050" 206 int 212 exh Lift . 513 int . 520 exh Lobe sep. 115 4. 8L 5. 3L GM TRUCK. significant gains in mid and upper rpm range. Works best with tune. SPRING PN: PAC SPRINGS 1219 Specs: Max lift: . 625" coil bind: 1. 100" install height: 358 @ 1. 200

They're especially good for engines that run at medium-to-high revs

Head Style:12-point

self-locking nuts)

LSR Cathedral Port 231/239 Hydraulic Roller Cam for GM LS GEN III/IV

Choke: Electric

These ARP engine bolt kits come in polished stainless steel bolts with 12-point heads

Damper Spring Included: No

Other features include integrated nitrous bungs and perfect bolt-on fitment that allows the use of factory accessories without modification or clearance concerns

Allows precise monitoring of nitrous bottle pressure

Stamped Steel Covers

which is especially important for higher-load springs

PN:  C293CS-A