This auction is for a PAIR of fully assembled Dart Pro One Platinum small block Chevy aluminum cylinder heads finish machined and assembled by PERFORMANCE ENGINE AND MACHINE with quality PBM and Erson components. Winners choice of 180cc, 200cc, 215cc, or 230cc intake runner volume with CNC bowl blending and as-cast ports. Choice of 64 or 72cc combustion chambers. Choice of straight or angled spark plugs. (Please see dart casting numbers below) Heads are complete with PBM RACE SERIES stainless steel intake and exhaust valves. Assembled with K30 valve train kit including PBM steel retainers, PBM 7 degree locks, PBM positive steel jacketed viton valve seals, PBM 3/8 screw in studs and PBM 5/16 guide plates, 1.260 diameter Erson single valve springs with dampers having 100lbs @ 1.730. This combination will allow up to a .525" lift camshaft and also allows you to use stock rocker arms and standard length pushrods.

These heads are finish machined, cleaned and assembled by us at our shop complete and are ready for installation!!

Springs and retainers can be upgraded for an additional charge to match your cam and application.

K32 kit with 1.26 dia. single valve springs having 110lbs@1.800 and +.100 Race series valves allowing hyd. flat tappet cams to .600 lift add $10.00USD

K31 kit with 1.46 dia. single valve springs having 120lbs@1.800, chrome moly retainers and +.100 Race series valves allowing hyd. flat tappet cams to .600 lift add $65.00USD

K34 kit with double 1.460 dia. valve springs having 135lbs@1.800, chrome moly retainers and +.100 Race series valves and 7/16 rocker studs for mech. flat tappet or hyd. roller cams up to .600 lift add $85.00USD

K38 kit with double 1.500 dia. valve springs having 205lbs@1.850, chrome moly retainers and +.100 Race series valves and 7/16 rocker studs for mech. roller cams up to .670 lift add $100.00USD

K385 kit with double 1.550 dia. valve springs having 220lbs@1.950, chrome moly retainers with 10 deg. machined locks, +.200 Competition series valves and 7/16 rocker studs for mech. roller cams up to .720 lift and 7/16 rocker studs add $180.00USD

Titanium retainers add $150.00USD

During check out select head casting and spring upgrade.

If you have any questions feel free to call us... 608-836-8130

Castings are in stock and ready to be assembled for your application. Dont pass up these great deals on new Platinum series heads.

THESE ASSEMBLIES ARE BUILT WITH TOP QUALITY NEW CASTINGS, NEVER SECOND OR BLEMS.

For more pictures of this item please visit:

http://www.PERFENGINE.COM/ebaypro1sbc.htm