2 sets of BBC heads.

[Offshoredrillin]

2 sets of BBC heads off of 500 efi one set fresh, one set 45 hours. will work on any hp 500 carb/efi setup...1800.00 for both plus shipping...410-746-0020..pics to follow

 

[rssteiny]

are they stock and have they been redone.

 

[Offshoredrillin]

are they stock and have they been redone.

they have been milled slightly to raise compression. less than 10thousanths the fresh set is perfect all new top of the line valves by Dave at MDG. the other set was done by JC.
When i did the work, I didn't change the fuel system and leaned one motor out, broke a valve, then I went to AFR's.

 

[tunnelvision69]

just curious, how much speed did you pick up with the afr's?

 

[Offshoredrillin]

just curious, how much speed did you pick up with the afr's?

About 3 solid mph, but, the midrange on my boat is so much better. I also did the throttle bodies from asm, new injectors, new fuel system, new program. If your in slidell go see Mark at Precison, he was a huge help. I'm at 615 hp now and 670 lbs of TQ.

 

[Offshoredrillin]

still have these heads...they need to find a good home, call with reasonable offers, need the shop space...410-746-0020

 

[Offshoredrillin]

one set left, only 45 hours 750 obo...