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      JUST IN!   07/18/2018

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Big Jay

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About Big Jay

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  1. You would be lucky to find 1/2 HP difference on the dyno and they will live way longer.
  2. You can get a Carrillo for $240.00
  3. If you would rather just order a new head with all the good stuff in it, ready to install; Here you go.. http://www.bigborethumpers.com/newheads.html If you want to take yours apart and put the good parts in it yourself, we have all the parts. http://www.bigborethumpers.com/crfheadkits.html
  4. Or you can buy a brand new head with all the parts in it ready to bolt on http://www.bigborethumpers.com/newheads.html
  5. The 5 angle valve jobs are very "old school". Todays leading shops use a full radius seat. Jay
  6. Yesterday I posted that we would do some race ported heads for a selected few customers in trade for good cylinder heads. This post apparently deleated. Can the mods let me know if there was something improper with that post? Jay