This auction is for a PAIR of fully assembled Dart Pro One Big Block Chevy Rectangular port style aluminum cylinder heads finish machined and assembled by PERFORMANCE ENGINE AND MACHINE with quality PBM and Erson components. With choice of 310cc, 325cc or 345cc intake runner volume with blended bowls and as-cast ports. Heads have 119cc combustion chambers. (Please see dart casting numbers below) Heads are complete with PBM COMPETITION SERIES stainless steel intake and exhaust valves. Assembled with K3050 valve train kit including PBM chrome moly retainers, PBM 10 degree locks, PBM positive steel jacketed viton valve seals, ARP 3/8 screw in studs and PBM 3/8 guide plates, 1.510 diameter Erson dual valve springs with dampers having 110lbs @ 1.900. This combination will allow up to a .600" lift hyd. flat tappet camshaft.

These are the New Dart BBC heads with thicker Deck, improved flow and new runner Design.

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.

K3425 kit with double 1.460 dia. valve springs having 140lbs@1.900, for mech. flat tappet or hyd. roller cams up to .650 lift add $40.00USD

K385 kit with double 1.550 dia. valve springs having 220lbs@1.950, for mech. roller cams up to .720 lift add $80.00USD

K43 kit with double 1.625 dia. valve springs having 250lbs@2.00, for mech. roller cams up to .880 lift add $125.00USD

Titanium retainers add $150.00USD

During check out simply request an invoice with the desired Dart casting number and kit from above.

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 information and pictures on this item please visit:

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