New in the box ls6 ported GM 243 heads from GM performance GM part#88958622
Mar 4, 2017 | 04:09 PM
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New in the box ls6 ported GM 243 heads from GM performance GM part#88958622
gm has lingfelter performance cnc their heads.Here is a discussion about them.
Hi, we actually do the CNC work on those heads for GM, let me give you some info:
the heads are made in 2 versions, a 60cc and a 62cc chamber. The 60cc chamber will give you about 11.3:1 compression on a stock bottom end.
Flow numbers:
Int. Exh.
200 150 117
300 225 168
400 273 202
450 285 210
500 291 217
550 304 221
600 311 222
They still use the LS6 sodium filled valves, stock size, and LS6 valvesprings. The 60cc versions have been milled approx. .055" to achieve this chamber size,These are 60cc version.$1600
Hi, we actually do the CNC work on those heads for GM, let me give you some info:
the heads are made in 2 versions, a 60cc and a 62cc chamber. The 60cc chamber will give you about 11.3:1 compression on a stock bottom end.
Flow numbers:
Int. Exh.
200 150 117
300 225 168
400 273 202
450 285 210
500 291 217
550 304 221
600 311 222
They still use the LS6 sodium filled valves, stock size, and LS6 valvesprings. The 60cc versions have been milled approx. .055" to achieve this chamber size,These are 60cc version.$1600
