Engine Components & Accessories > Cylinder Heads & Components

Suits all LS engines Perfect replacement for old, corroded dowel pins Includes 4 dowel pins – enough for 1 engine.

Required if wanting to keep your knock sensors while using a Cal Custom valley pan Manufactured with billet aluminium Compatible with all Gen III ...

Suits Small Block Chev (1955-85) Precision machined billet aluminium Suits 7/16" studs 1.6 ratio 0.600" maximum lift 1.625" maximum valve spring d...

Suits GM LS1 LS2 LS6 Stainless steel Suits 3/8" studs 1.8 ratio High quality steel rollers, roller bearings, and trunions Full set including posi/...

Designed to eliminate trapped air and steam from the coolant ports in the cylinder heads. Helps to prevent hot spots and overheating. Billet alumi...

Converts stock rocker arms into captured roller trunnions for high RPM applications Cost effective alternative to a billet roller rocker setup Inc...

Large intake bore provides maximum airflow for mid to high range horsepower engines Perfect match for the Calflow Fabricated LS intake manifolds (...

Large intake bore provides maximum airflow for mid to high range horsepower engines Perfect match for the Calflow Fabricated LS intake manifolds (...

Large intake bore provides maximum airflow for mid to high range horsepower engines Perfect match for the Calflow Fabricated LS intake manifolds (...

Large intake bore provides maximum airflow for mid to high range horsepower engines Perfect match for the Calflow Fabricated LS intake manifolds (...

Billet aluminium adaptors Braided stainless hose Black finish Fits front or rear of the engine. Includes blanks Requires thread sealant when fitti...

Suits Ford Windsor 289, 302, 351 Brilliantly engineered and manufactured Made from AC4B Aluminium As cast runners and chambers ½” to 7/16” reducin...

Suits Big Block Chevy engines Brilliantly engineered and manufactured Made from AC4B Aluminium As cast runners and chambers Sold as a pair Specifi...

Suits GM Gen IV LS3 Made from AC4B Aluminium As cast runners and chambers Sold as a pair Specifications: Combustion chamber: 70cc Intake runner v...

Suits GM Gen III LS6 and Gen IV LS2 Made from AC4B Aluminium As cast runners and chambers Sold as a pair Specifications: Combustion chamber: 65cc...

Suits GM Gen III LS1 Made from AC4B Aluminium As cast runners and chambers Sold as a pair Specifications: Combustion chamber: 64cc Intake runner ...

Suits Small Block Chevy engines Suits entry-level street performance engines (0-6500rpm) Made from AC4B Aluminium As cast runners and chambers Sol...

Suits Small Block Chevy engines Suits entry-level street performance engines (0-6500rpm) Made from AC4B Aluminium As cast runners and chambers Sol...

Billet aluminium 1/8" NPT Fits front or rear of the engine Requires thread sealant when fitting (not included)

Billet aluminium adaptors Braided stainless hose Fits front or rear of the engine Requires thread sealant when fitting (not included) Left side ad...

Suits GM LS1 LS2 LS6 Precision machined billet aluminium rockers 8 ratio Silver anodised finish High quality steel rollers, roller bearings Includ...

Suits Small Block Chev (1955-85) Precision machined billet aluminium rockers 6 ratio Silver anodised finish High quality steel rollers, roller bea...

Suits Holden 253 308 Precision machined billet aluminium Suits 7/16" studs 1.65 ratio 1.625" maximum valve spring diameter Black anodised finish H...

Suits Holden 253 308 Precision machined billet aluminium Suits 3/8" studs 1.65 ratio 1.625" maximum valve spring diameter Black anodised finish Hi...