24502615-15 degree Aluminum Race head
(Part # 24502615)

Special Price: $725.00

SBC 15° Alum. Drag Race Head. This new 15º aluminum cylinder head is designed for small displacement racing engines that run competition eliminator. This head is identical to the 18º head, except the head is rolled by machining the deck surface at a 2º angle and thereby removing more material from the exhaust side of the head than the intake side. The valve guide holes are also tipped 1º in the casting to produce a total of 3º in valve angle. Smaller combustion chambers are the main advantage. The head does not have valve seats or valve guides and has 35 to 37cc chambers instead of 42 to 44cc in the 18º head. Technical Notes: P/N 24502615 is made from the same casting (101343633) as the 10134364. This is not a "CNC" ported cylinder head.