Holley GM LS/LT Gen III/IV Hardware Kit 97-174 *Replacement Hardware kit for 20-135 & 20-143   Kit contains the following replacement parts: Qty 1 - Driver's Side Idler Pulley Step Spacer Qty 2 - Alternator Bolts - M10 x 1.5 x 80 Qty...

Holley GM LS Gen III/IV Hardware Kit 97-172 Replacement Hardware kit for 20-133 & 20-140 Kit contains the following replacement parts: Qty 1 - Spacer to Passenger's Side Head Bolt - M10 x 1.5 x 30 Qty 3 - A/C Compressor Bolts - M8 x 1.25 x...

Holley GM LS Gen III/IV Hardware Kit 97-170 Replacement Hardware kit for 20-131 & 20-136 Kit contains the following replacement parts: Qty 1 - Driver's Side Idler Pulley Step Spacer Qty 1 - Spacer to Passenger's Side Head Bolt - M10 x 1.5 x...

Holley GM LS Gen III/IV Hardware Kit 97-173 Replacement Hardware kit for 20-134, 20-141, & 20-142 Kit contains the following replacement parts:   Qty 1 - Spacer to Passenger's Side Head Bolt - M10 x 1.5 x 30 Qty 3 - Passenger's Side...

Holley GM LS Hardware Kit 97-171 Hardware kit for 20-132, 20-137, & 20-138 Kit contains the following replacement parts: Qty 1 - Spacer to Passenger's Side Head Bolt - M10 x 1.5 x 30 Qty 2 - Alternator Bolts - M10 x 1.5 x 80 Qty 2 - Power...

Holley GM Gen V LT Swap Oil Pan 302-22   GM's new Gen V LT direct injected engines are starting to find their way into a large variety of vehicles. They make great power, plus they're very durable and reliable. Unfortunately, the factory oil pans...

GM LS Swap Oil Pan Baffle Kit 17-302-10 Trap door baffle kit for 17-302-1 & 17-302-1B Oil Pan. Direct bolt-in, constructed of sheet aluminum. 

GM LS Swap Oil Pan Baffle Kit 17-302-11 Trap door baffle kit for 17-302-2 & 17-302-2B Oil Pan. Direct bolt-in, constructed of sheet aluminum. 

Holley LS Tall Valve Covers For Dry Sump Applications - Polished 241-96 Tall LS Dry Sump Valve Covers without Oil Fill, Cast Aluminum - Red Finish Holley's Tall LS valve covers for dry sump applications are the latest addition to our extensive line of...

Holley LS 2-Piece Pontiac Style Valve Covers - Satin Black 241-192 Cast Aluminum LS Valve Covers with Coil-Mounting Base & Integrated Coil Cover  Holley's 2-Piece LS valve covers are a great way to update the look of your LS engine without the...

Holley LS Tall Valve Covers With Dominator Logo - Natural 241-118 Tall LS Valve Covers with "Dominator" Logo, Cast Aluminum - Natural Cast Finish Holley's Dominator valve covers are the newest addition to our ever expanding line of products specifically...

Holley LS Tall Valve Covers With Dominator Logo - Orange 241-162 Tall LS Valve Covers with "Dominator" Logo, Cast Aluminum - Factory Orange  Holley's Dominator valve covers are the newest addition to our ever-expanding line of products specifically...