<VV> Corvair Cylinder head Identification for late Turbo

[Duane, Jim E.]

Hi Bill.

If the only problem is the enlarged spark plug hole, Take it off and check around.  There are some (Jack, you out there, buddy?) magic machinists who can repair heads by adding material.  It was done on my heads.

Good luck.

Jim Duane
'66 180 Corsa CVT
Colonial Corvair

-----Original Message-----
From: virtualvairs-bounces at corvair.org [mailto:virtualvairs-bounces at corvair.org] On Behalf Of Bill Meglen
Sent: Friday, February 03, 2012 3:47 PM
To: Virtual Vairs
Subject: <VV> Corvair Cylinder head Identification for late Turbo

> Finally getting to the enlarged spark plug hole on the Turbo side of my 1966
> Convertible.  It appears that a helicoil or equivalent had been installed and
> came loose.  The resultant enlarged hole was too large even for the oversized
> Keen-sert.  The head will have to come off to be repaired (?) or replaced.  I
> was not able to get the casting number from the existing head and do not have
> the engine case number in hand.  I suspect that the turbo engine was added to
> a non turbo convertible.  I have a head bearing casting number 3819876 that
> was represented as for a late turbo engine.  It is clean but without valve
> train.  My research did not identify the head as a suitable replacement.  Can
> anyone help?  Are their any issues involved in using unmatched casting number
> heads?  Any opinions as to whether I would be better off repairing the head I
> will remove?  I have no history on engine condition except representations of
> PO.  Presume I could do a compression check on at least 5 cylinders before
> removing the damaged head.  I am unfamiliar with the turbo.  Are their off
> engine evaluations I can make before re-installing?
> 
> Bill, 
> Gardnerville, NV

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