Ford SB 289 302 351 Windsor 12 Point Steel Intake Manifold Bolt Kit They feature bodies and /

They feature bodies and / or secondary towers and feature brass secondary contacts (except direct fire coil on plug applications)

Speedmaster flexplates are the best on the market

The runner length and the tapered cross-section were designed to perform well for a wide range of engine configurations

circle track and drag racing

Ford SB 289 302 351 Windsor 12 Point Steel Intake Manifold Bolt Kit They feature bodies and /Speedmaster 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.