Originally Posted by cepx111
I bought a used set of world products merlin heads casting # 1-043b and I cant find any info on them what so ever, anybody ever heard or used these babies?
They are cast iron rectangler intake ports and have D shaped exhaust ports the intake valves are huge and look like 230's
Just wondering what the intake port volume might be, I got a good deal on them and plan on using them on my 13 to 1 compression 496 bbc but I'd still like to know what the specs are before I throw some money at them. Any help on the info would be appreciated.
Thx, Charles
I had the 1-043c which are the 310cc and had 2.300, and the 1-043b are 345cc runners but I am not sure of the valve sizes. I called World and they gave me my specs for my heads. Give them a call. They should work pretty good on your 496. Good luck.