Pay in 4 interest-free payments of $3.77 Learn more
Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
All kits come complete with 4130 heat-treated
durable upgrade for the front of your engine
High performance fuel injectors
Engineered for performance and built to last
Speedmaster Forged pistons are made from 4032 aluminum alloy for quieter operation and reduced piston to wall clearance
Holden 253 304 308 12 Point Black Oxide Intake Manifold Bolt Kit All kits come complete withSpeedmaster black oxide coated chromoly intake manifold bolts are rated at 170,000 psi. They're precision machined for optimum thread engagement and have a wide area flange for better load distribution. They also feature precision rolled threads, which prevent galling, while promoting more consistent torque loading.
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