Quote:
Originally Posted by 70 Dream
I have to make my rebuild decisions soon. What I want is a stock rebuild for my 400 cid. We all know the stock 10.25 CR is too high for today's gas . . . . but if I go for say a 9.5 CR, will that be too high, even for 93 octane?
But then you say-
I don't really care about performance as much as streetability and reliability.
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If you are not worried about performance as much as playing it safe,just put the CR at 8.5 or so, and run it on regular 87 octane. JMO
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‘63 LeMans- ‘69 400 w/ original transaxle. 2.69 gears.
‘55 Catalina
‘62 Mercury Meteor-all original, bought new by my grandfather
71' GTO -original 400/4-speed/3.23 posi
13.95 @ 102.1 on street tires @ 4055lbs.-now my sons ride