New pair of assembled Dart SS series Iron heads # 10024267. Cylinder heads are for carbureted 1955 - 1986 small block 327, 350, 377, 383 or 400 engines. (377 & 400 applications for street would require steam holes to be drilled. 76cc heart shaped combustion chambers. Straight plug design. High flow 165cc intake runners. Darts intake port volume chart rates these heads adequate for engines with a projected horsepower in the 400 HP to 450 HP range. Integral cast valve guides. Bolt holes on end of heads for all accessories. Heads have both the perimeter and center bolt holes for valve covers. These heads are assembled in our machine shop. Seat concentricy is checked. Assembled with Erson race series 1 piece EV-8 stainless 2.02 intake valves and 1.60 exhaust valves with chrome plated and undercut stems, swirl polished stem and hardened tips. New Erson .500 max. lift stock diameter valve springs with 120 lbs. of seat pressure, ( .600 lift valve springs are available), new steel retainers, hardened locks, and viton positive valve seals. Screw in rocker arm studs (3/8") and guide plates are also included.( We can drill the steam holes for an additional $40.00 for the pair. For 400 engines.) ( These heads are also available in 67cc versions - see our other lot listings for this chamber size )
Shipping cost is to the continental USA only.
Buy with confidence - we have been in the machine shop and racing parts business full time since 1978.