Thread: biulding 388 sbc
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Old 10-30-2010, 09:52 AM
  #18  
oldandtired
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In a traditional 184346572, you have three same crank BTB pin fireing
(4-3, 6-5, 2-1)

In a 4/7 swap 18736542 you only have two (8-7, 6-5)

In a double 7/4 - 2/3 you go back to three same pin BTB fireing.

Are the double swaps proven to be any better?
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