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12363400 - Complete Rectangular Port Aluminum Head 2.25" Valves

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

Pricing: $1,007.56


This head is identical to P/N 12363410, except it has 2.25" stainless steel intake valves, and 1.88" stainless steel exhaust valves with 11/32 stems.

Intake Runner Volume is 315cc. Rectangular Port,Semi Open 118cc Combustion Chamber.

It also includes high performance valve springs, valve spring caps, keys and valve stem seals.Valve springs are good for up to .680" lift. Springs have 140 lbs closed pressure and 360 lbs open pressure.

These heads are designed for high horsepower 396, 427, 454, and 502 engines.

Technical Note: For 502ci engines, use no sealant on the head bolts. For all big-block engines, use intake manifold gasket kit P/N 12366985, with intake bolt kit P/N 12367959, and cylinder head bolt kit P/N 12367779.Cylinder head casting number is 12363401.



Application List




Shipping Information

  • Item Requires Shipping
  • 42.6 lbs.
  • W9.8000” x H7.3000” x L25.0000”

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