Hello all, up for sale is a very nice set of 3919842 L88/L89 Corvette aluminum cylinder heads, date coded 12/67 and 05/68. The heads arefresh from Nelson Competition in Pinellas Park, FL with all new hardware, onlythe bare castings were re-used. The heads were disassembled, hand cleaned,tumble polished to a fantastic factory finish, surfaced, 2 exhaust bolt holeswere repaired with quality heli-coils along with 2 valve cover bolt holes, allother threads seem to be in good condition. New parts include,

• Brand new severe duty stainlesssteel Elgin valves
• Comp Cams valve springs(26112-16)(these springsare slightly stronger than stock so that either a stock cam can be utilized, ora larger aftermarket cam as well with no problems)
• Comp Cams toolsteel retainers (1750-16)
• Comp Cams tool steel super valve locks (612-16)
• Comp Cams steel bodied Viton oil seals (514-16).

The heads do have some mild port and polishing done, but thework looks to be done at a high level. These heads are in really nice shape, areready to be bolted on to an engine today! They are priced to sell, with , the high offer takes ‘em home! I have provided all of the information Ihave on the heads, but am more than happy to try and answer any other questionsyou may have.