Engine Internals

From pistons and connecting rods to camshafts, crankshafts, bearings, and gaskets, our engine internals selection has everything needed for a reliable bottom end and a high-revving top end. With forged and performance options alongside OE-style replacements, every component is built for precision and durability. Lay the foundation for serious power and keep your engine strong under pressure.

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GSC P-D Subaru Subaru EJ205/EJ207/EJ257 Chrome Polished Exhaust Valve - 32mm Head (STD) - Single

Regular price $37.99
Sale price $37.99 Regular price
Unit price
GSC P-D Subaru Subaru EJ205/EJ207/EJ257 Chrome Polished Exhaust Valve - 32mm Head (STD) - SingleThis...

GSC P-D 4G63T Evo1-9/DSM 90-98 Chrome Polished Super Alloy Exhaust Valve - 31.5mm Head(+1mm) -SET 8

Regular price $270.28
Sale price $270.28 Regular price $317.98
Unit price
GSC P-D 4G63T Evo1-9/DSM 90-98 Chrome Polished Super Alloy Exhaust Valve - 31.5mm Head(+1mm) -SET...

GSC P-D 4G63T Evo1-9/DSM 90-98 Chrome Polished Super Alloy Exhaust Valve - 30.5mm Head(STD) - SET 8

Regular price $270.28
Sale price $270.28 Regular price $317.98
Unit price
GSC P-D 4G63T Evo1-9/DSM 90-98 Chrome Polished Super Alloy Exhaust Valve - 30.5mm Head(STD) -...

GSC P-D 4G63T Evo 1-9 / 90-98 DSM Chrome Polished Intake Valve - 35mm Head (+1mm) - SET 8

Regular price $171.12
Sale price $171.12 Regular price $201.32
Unit price
GSC P-D 4G63T Evo 1-9 / 90-98 DSM Chrome Polished Intake Valve - 35mm Head...

GSC P-D 4G63T Evo 1-9 / 90-98 DSM Chrome Polished Exhaust Valve - 31.5mm Head (+1mm) - SET 8

Regular price $168.11
Sale price $168.11 Regular price $197.78
Unit price
GSC P-D 4G63T Evo 1-9 / 90-98 DSM Chrome Polished Exhaust Valve - 31.5mm Head...

GSC P-D Mitsubishi Evo 9 4G63T 34mm Dia (STD) Chrome Polished Intake Valve - Set of 8

Regular price $170.37
Sale price $170.37 Regular price $200.44
Unit price
GSC P-D Mitsubishi Evo 9 4G63T 34mm Dia (STD) Chrome Polished Intake Valve - Set...

GSC P-D 4G63T Evo 1-9 / 90-98 DSM Chrome Polished Exhaust Valve - 30.5mm Head (STD) - SET 8

Regular price $168.50
Sale price $168.50 Regular price $198.23
Unit price
GSC P-D 4G63T Evo 1-9 / 90-98 DSM Chrome Polished Exhaust Valve - 30.5mm Head...
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GSC P-D SR20DET Valve Stem Seal Set

Regular price $29.99
Sale price $29.99 Regular price
Unit price
GSC P-D SR20DET Valve Stem Seal SetThis Part Fits: Year Make Model Submodel 1991-1993,1995-1998 Nissan...
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GSC P-D Nissan VQ35DE Viton 5.5mm Valve Stem Seal Set

Regular price $39.99
Sale price $39.99 Regular price
Unit price
GSC P-D Nissan VQ35DE Viton 5.5mm Valve Stem Seal SetThis Part Fits: Year Make Model...
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GSC P-D D16/B18-21/ H23 Viton 6.6mm Seal Valve Stem Seal Kit

Regular price $35.99
Sale price $35.99 Regular price
Unit price
GSC P-D D16/B18-21/ H23 Viton 6.6mm Seal Valve Stem Seal KitThis Part Fits: Year Make...
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