PAIR of BTR 7-Layer Small Bore (4.8L/5.3L) MLS Cylinder Head GasketsBTR SMALL BORE 7 LAYER HEAD GASKETS 3. 940" BORE . 055" THICKNESS SOLD IN PAIRS BTR 058420 2 These small bore, seven layer MLS head gaskets from BTR utilize the same sealing technology found in the ever popular LS9 gasket. This is the perfect choice If you have a 4. 8L or 5. 3L LS and want to turn the boost all the way up! WILL NOT WORK WITH A TRICK FLOW FAST AS CAST LS1 HEAD. For those and other aftermarket cylinder heads, we recommend BTR22033 2.

Silicone is much more impervious to oil based contaminants

Enhanced Fatigue and Wear Resistance

600" 111 LSA

It has a nice mild lope that can even be hidden with the right exhaust and tune for a true sleeper cam

that can be utilized with the switch panel feature to quickly turn on any of your auxiliary accessories

The OEM differential in the GM Trucks leaves much to be desired once you begin increasing performance

*Item ships directly from Brian Tooley Racing

producing the most stable and highest revving hydraulic lifter available

FIC 1200cc Fuel Injectors for LS1/LS6 Height Applications

Correct fitment and bolt pattern for 2004-2006 GTO applications

582" 108 LSA +10% Fuel Lobe

GM L86 Intake Manifold