Re: 440 Pistons and Rod Recomendations

My iron 452 heads were verified as having 87cc chambers today - he acknowledged he swapped the digits on the prior test. As far as flows, they were ported and flow tested by Koefels and flow as good as the Edelbrocks.

I decided to go with SRP 213456 pistons and Eagle rods. Compression will be right around 9.5-1. Flat top with valve recesses, not a step head piston. Compression ratio is 9.62, subject to verification of the deck heigth.

The Comp Cams Cam Quest says I should be over 500 HP at the flywheels. Best chassis dyno has been around 350HP behind the TF tranny - this was with a milder cam and a fresh engine. Hopefully the fresh and better quality engine will give me the 425 rear HP I need.

Akron Don Gallimore

From: mike creglow <mcreglow@xxxxxxxxx>
To: 1962to1965mopars@xxxxxxxxxxxxxxxx
Sent: Monday, April 7, 2014 9:13 PM
Subject: Re: 440 Pistons and Rod Recomendations

don,

did you have your heads flow tested?
i would agree that your heads are 88cc instead of 78cc. if they milled that much off your heads they would have turned into closed chamber. plus it would have been a bugger getting your intake to fit.

two years ago a built a street 440 for my '64 fury that made 549.6 HP @ 5600 and 611 ft-lis torque @ 4400. i used K1 rods and ross pistons for a compression ration of 10.36:1 which is perfect for non-ethanol pump gas. i am using aluminum heads -- they are the mopar aluminum closed chamber 452 heads (essentially they are edelbrock performer RPM with straight plugs). where i'm going with this is -- does it make more sense investing in a good set of aluminum heads? you can run more compression (read more HP) and they will work fine for the street. thoughts?

mike

On Sat, Apr 5, 2014 at 10:10 PM, Donald Gallimore <dongallimore@xxxxxxx> wrote:

I had that checked the last time the heads were done. They said 78cc which, as I now think about it, I did some research which indicates a low value of 88ccs for a 452 head. I'm going to have them check that again. That makes about a point difference in compression ratio. I'll bet it's 88, not 78.

The other problem I have is that I am not sure what piston is in the engine now so I don't know it's compression heigth. Makes it hard to determine the actual deck heigth.

Akron Don Gallimore

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