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1965-1972 Oldsmobile big block factory fit headers for 400,425, and 455 engines.
Part Number: FF455
Due to current supply issues normal delivery times are currently being delayed. We will fulfill your order as quickly as we can and appreciate your patience.
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1965-1972 Oldsmobile big block factory fit headers for 400,425, and 455 engines.
- Factory fit big block Oldsmoible tubular headers come with
- gaskets. Do not include hardware. For hardware use part number TS5362 Made of stainless steel 409 and coated in a high temp paint.
- These headers will only fit big block Oldsmobiles with 455, 425 &
- 400 engines from 1965 to 1976 The exhaust outlet is best fitted
- to 2 1/2" head pipes with factory style flair and will fit 2 1/4"
- standard head pipes.
- Special torque sequence is needed.....do not tighten top center bolt
- until the other 4 bolts are tight, 25 pounds, start at the center 2
- bolts then the 2 outer bolts then the center top bolt last.
These headers are fitted to replace your factory exhaust manifolds with tubular headers with no modifications needed. There are no issues with clearance with the starter, frame, Z-bar, dip stick, steering shaft, etc. All accessories will fit without modifications; all air conditioning, power steering, alternator brackets all attach to the engine as original.
