<VV> cylinder heads for reliability
Dan & Synde
dsjkling at sbcglobal.net
Sun Nov 11 22:54:39 EST 2007
Any non-turbo small valve head. From your choices, I pick the 95HP heads.
I got fed up with the 140 large valve heads years ago in our Greenbrier.
Some like em in the payload vehicles, I don't. Only give you the extra HP
at the top end w/less torque at the low end. After repeated dropped seats,
I was done. All Corvair heads can and do drop seats, some just have more of
a propensity for it like the 140 heads. There was a time when I would
flinch everytime I started up the engine when it was cold. Not anymore.
Went with small valve heads and never looked back. One thing that does
help...On a warm day after a cruise, let the engine idle for a bit before
shutting it down. Also, on any head you don't know the history of....have
all the seats replaced when you have a valve job done by shop familar with
aircooled engines. That way, there are usually no surprises.
1961 Greenbrier Deluxe, 4spd, 3.89 On the Road Again, yeehaw :)
1963 Spyder, restored 4spd Saginaw
1967 Ultravan #299 Newest of the herd!! Almost killed me already!!
A few pictures of the Greenbrier, UltraVan, engine and tranny tear down with
more to come!
>A question for the crowd: Which cylinder heads should be used for the most
reliability? I just lost an intake valve >seat on my 1963 Rampside 140HP PG.
These heads were VERY deflashed.
More information about the VirtualVairs