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2L Pinto build (Mk1 Esky van)


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Hi All

I've got a '71 MK 1 Escort Van. I've had it for amost 2 years and I'm pulling the mighty 1100cc and putting in a Pinto 2L as I'm sick of being over taken by old ladies and cyclists.

I have the bottom end built it's pretty much a sandard 205 with 1mm over pistons, shot peened rods, everything balenced and the deck was skimed .006 to clean it up (Yes I know I should have zero decked it).

Bore 92.25mm

Stroke 76.9mm

Deck 0.59mm

Gasket Dia 93.25

Gasket thickness 1.4mm

The current numbers give me 9.61:1 CR.

1mm felpro gasket: 10.01:1

.75mm copper gasket: 10.29:1

.50mm copper gasket: 10.57:1

.25mm copper gasket: 10.88:1

We put the head on my friends flow bench (Superflow 110) and got some good numbers. It's down on the last head I did (only by about 2-5% depending on the lift point) but that had the valve guides shortened and knife edged 45.5mm wasted stem inlet valves and less epoxy in the port.

Lift mm / stock / mine - CFM @28"

1.27 / 21.8 / 25.4

2.54 / 47.8 / 53.7

5.08 / 107.6 / 112.0

7.62 / 141.5 / 150.1

10.16 / 151.9 / 174.8

12.70 / 157.2 / 185.8

I was well pleased with the results but the velocity was higher than Max would have liked to see at 260 fps. I asked him if I should lower the tops of the epoxy speed humps he sad no because I'm building a daily driver that isn't going to see high rpms often and the higher velocity will help at low rpm.

I'm going to run the throttle body injection set up from a Falcon that I ran on my last Van so it will still look stockish.

BF134: 1000-6250 rpms, 11.7mm lift, 266 duration, full lift 110°

FR34: 1000-6250 rpms, 12.7mm lift, 263° duration, full lift 110°

FR32: 2500-7000 rpms, 11.22mm lift, 285° duration, full lift 108°

I'm told that the BF134 doesn't stress the valve train as much but I'd be loosing flow. I'm liking the FR34. With the common plenum manifold I think running a cam with a lot of duration isn't a good idea because of the reversion.

Any thoughts on what cam, how much CR and running a thin copper head gasket with out o-ringing block?

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Wasnt sure if you posted in the wrong section or what.. So I moved thread to project build and started you a project discussions thread.

See here.

viewtopic.php?f=18&t=23213

Gaz

Sorry Gaz I didn't think people were allowed to post on others threads in the project build forum but obviously not :wink:

Have you ever used a copper head gasket on a pinto?

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