2004 Chevrolet Corvette Base Performance Parts

BTR HEAD GASKET - 4.8/5.3/LS1 - SOLD INDIVIDUALLY - BTR89226 BTR has sourced our very own MLS head gasket that can be used on 4.8, 5.3, and 5.7 liter engines. This is a DIRECT REPLACEMENT for the LS1/LS6 GM head gaskets. This gasket has...

BTR FLEXPLATE ADAPTER KIT - LS TO TH400/TH350/700R/PG - BTR21399 If you're bolting a TH350/400, Powerglide, or 700R4 behind your LS motor, BTR's flexplate adapter kit makes installation a breeze. This kit includes: (1) 12563532 (1) 19260102 (6) BTR57940 Designed for torque converters that...

BTR HEADERS GASKET - LS - MLS - BTR17944 BTR HEADER gasket can be used in place of GM part # 12617944. 2 NEEDED PER ENGINE!

BTR OIL PAN GASKET - LS - BTR12350 BTR oil pan gasket that can be used in place of GM part # 12612350

BTR HEAD BOLT KIT - 04+ LS - 2 NEEDED PER ENGINE - BTR00568 The BTR equivalent of the Chevrolet Performance 17800568 head bolt kit. Same great quality, lower price. What's better than that? Make sure you purchase TWO kits per engine if needed...

BTR BEEHIVE SPRING LOCATORS - FOR OEM LS GUIDES - .071" THICK - BULK BAG OF 200 - SL505071BH-200 BTR Spring Locator Bulk Bag of 200pc for Beehive LS springs with OEM LS guides. 0.500" ID - 0.9025" Step ID -  1.260" OD -...

BTR BEEHIVE SPRING LOCATORS - FOR OEM LS GUIDES - .071" THICK - SET OF 16 - SL505071BH-16 BTR Spring Locator set for Beehive LS springs with OEM LS guides. 0.500" ID - 0.9025" Step ID -  1.260" OD - 0.071" thick.

BTR BEEHIVE SPRING LOCATORS - FOR OEM LS GUIDES - .045" THICK - SET OF 200 - SL505045BH-200 BTR Spring Locator set for Beehive LS springs with OEM LS guides. 0.504" ID - 0.900" Step ID - 1.260" OD - 0.045" thick.

BTR BEEHIVE SPRING LOCATORS - FOR OEM LS GUIDES - .045" THICK - SET OF 16 - SL505045BH-16 BTR Spring Locator set for Beehive LS springs with OEM LS guides. 0.504" ID - 0.900" Step ID - 1.260" OD - 0.045" thick.

BTR BARE BLOCK PLUG KIT BTR engine clock coolant plug that can be used in place of GM part # 12561663. Includes: (1) BTR61663 Large Coolant Plug (3) BTR88949 Small Coolant Plug (1) BTR73460 Oil Galley Plug (1) BTR27693 Plug Core

BTR ENGINE BLOCK COOLANT PLUG - LS - BRASS - BTR61663 BTR engine clock coolant plug that can be used in place of GM part # 12561663.

BTR CUSTOM ARP 1/2" HEAD STUD KIT - 03+ LS Need a stronger fastener? BTR has put together a fantastic 1/2" head stud set for 03+ Gen III and Gen IV LS engines! Ideal for adding clamping force and head gasket stability for boosted...

BTR 4-BOLT TO 6-BOLT HEAD STUD CONVERSION KIT - LSX AND RHS BLOCKS - BTR4264 Bolt to 6 Bolt Conversion Kit for LSX and RHS Blocks Includes All Additional ARP2000 Studs, Washers and Nuts Needed to Accompany Standard ARP 4 Bolt Head Stud Kits...

BTR CUSTOM AGE 625+ LS MAIN STUD KIT The community requested it, and BTR has answered.We are commonly asked about a CA625+ Main Stud kit to go along with the ARP CA625+ Head Stud Kits. When you need enough clamping force to put the...

ARP WATER PUMP BOLT KIT W/ THERMOSTAT BOLTS - LS - 12-POINT - STAINLESS - 434-3202High performance quality that pro engine builders prefer! ARP water pump bolt kits are available in either a polished stainless steel or black oxide chromoly finish. They come in...