<VV> Fwd: Prefered motor for 65 Monza 4speed?
kovacsmj at yahoo.com
Fri Oct 13 19:23:23 EDT 2017
I have a slightly modified 140 PG .030 over with a mild cam in my '66 4 dr. It performs very well with the "squish' area down to .032, it runs very well on 87 octane. At 80 mph is still pulls strongly (on a track).
Just my 2 cents.
On Friday, October 13, 2017 10:55 AM, Bryan Blackwell via VirtualVairs <virtualvairs at corvair.org> wrote:
The big difference between the engines are the cam - a stick 140 has an 891 cam installed straight up, the PG 140 has an 889 cam with a 4 degree retard. The PG engine has a better torque curve down low but gives up 15 HP or so on the top end.
All else being equal, for a rebuild I'd pick the PG engine as it will likely have seen less abuse, and install the cam of your choice as specified by the cam supplier.
> On Oct 12, 2017, at 6:33 AM, John Gull via VirtualVairs <virtualvairs at corvair.org> wrote:
>> Now to consider a standard140 or a PG140 with Standard shift bell housing for my 4 speed car! I have both motors and they both will need rebuilding before using in my 4 speed Monza. Which would you all prefer to use and why one over the other? Thanks in advance for your reccomendations John in NC pondering this age old question!
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