NEW!!! PROMAXX 9342 BIG BLOCK CHEVY CNC PORTED CYLINDER HEADS

LISTING IS FOR ONE PAIR OF HEADS SHOWN IN PHOTOS

Brand new, unmolested cylinder heads. As received from manufacturer.

CNC ported and assembled in U.S.A.

2.300 / 1.880 Stainless valves

1.550 Valve Springs. 230 lbs. seat pressure @ 2.00 installed height, 600 lbs @ .700 lift.

315 CC castings ported to 340 CC intake volume.

121 CC chamber volume.

Rocker arm studs and 3/8 guide plates included.

Flow numbers per manufacturer:

lift	200	300	400	500	600	700	800	900	1.00
Int	177	271	323	365	387	400	412	415	417
Ext	148	195	243	270	289	307	310	312	315

Liquidating a complete performance parts and accessory store. All parts brand new in the box unless otherwise noted. Local pick up available - cash only. Contact us thru eBay for multiple part purchase combined shipping. This will not happen automatically. Check back often as hundreds of new parts will be added ASAP.

Thanks for looking and don’t forget to check out our other auctions and our eBay Store: BILLET RACING PARTS where you buy direct from the manufacturer and save on performance parts made in the U.S.A.