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01-30-2009, 03:11 PM
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#471
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I, Vettezuki
Join Date: Feb 2006
Posts: 14,754
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Quote:
Originally Posted by BRUTAL64
Depending on the piston manufacture. Yes, you SHOULD be able to fly cut the pistons for 2.02 valves. BUT! Lets not get ahead of ourselves here. If we have to go NA, then new piston would be needed. 
Hey, look at the chamber. What is FORD doing with their chamber here that FORD started YEARS before anyone else???? |
Yeah, I won't do anything with the pistons until we know if we're going boost or NA. I'm still holding out a lot of hope the 174 can be economically repaired.
An no, I don't know what Ford did before others did. Please do tell.
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01-30-2009, 03:18 PM
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#472
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Neanderthal
Join Date: Mar 2008
Posts: 5,320
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Quote:
Originally Posted by Vettezuki
Yeah, I won't do anything with the pistons until we know if we're going boost or NA. I'm still holding out a lot of hope the 174 can be economically repaired.
An no, I don't know what Ford did before others did. Please do tell.
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Pointing the spark plug toward the exhaust valve and getting it as high in the chamber as they could. Too bad the exhaust port is shit. These could have been good heads.
See if you can get me a part number off the top of the pistons.
I work Saturday, so I'll see the number before Monday.
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64 Vette Roadster 400 ci
1990 F150 351 ci SuperCharged
48 Harley Pan Head 76 ci
2016 Nissan Altma
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01-30-2009, 03:26 PM
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#473
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I, Vettezuki
Join Date: Feb 2006
Posts: 14,754
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Quote:
Originally Posted by BRUTAL64
. . .
See if you can get me a part number off the top of the pistons.
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Looks like L2305.
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01-30-2009, 03:28 PM
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#474
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Fast & Filthy
Join Date: Jun 2008
Posts: 3,840
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Quote:
Originally Posted by BRUTAL64
Pointing the spark plug toward the exhaust valve and getting it as high in the chamber as they could. Too bad the exhaust port is shit. These could have been good heads.
See if you can get me a part number off the top of the pistons.
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You can see the p/n on one of the pistons and the Speed Pro logo on the another. I looked the p/n up on Summit and here is the piston http://store.summitracing.com/partde...0&autoview=sku. |
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01-30-2009, 03:35 PM
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#475
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Neanderthal
Join Date: Mar 2008
Posts: 5,320
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Quote:
Originally Posted by 94cobra69ss396
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Man, you are fast. Yes, we could ( if needed ) fly cut the pistons. These are TRW/SpeedPro- good (not super, but good enough for what we are doing) forgings. 
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64 Vette Roadster 400 ci
1990 F150 351 ci SuperCharged
48 Harley Pan Head 76 ci
2016 Nissan Altma
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01-30-2009, 03:42 PM
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#476
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I, Vettezuki
Join Date: Feb 2006
Posts: 14,754
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Quote:
Originally Posted by BRUTAL64
Man, you are fast. Yes, we could ( if needed ) fly cut the pistons. These are TRW/SpeedPro- good (not super, but good enough for what we are doing) forgings. |
Well, in any event, these pistons have to come out to either be cut or replaced. . . right?
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01-30-2009, 03:47 PM
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#477
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Neanderthal
Join Date: Mar 2008
Posts: 5,320
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Quote:
Originally Posted by Vettezuki
Well, in any event, these pistons have to come out to either be cut or replaced. . . right?
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I used to fly cut pistons still in the block. There was special tool for that.
But, even with the new heads, it doesn't mean the piston will need to be cut.
We need to do a test fit with the heads and cam with clay or valve drop measurement.
I have soft springs for valve drop.
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64 Vette Roadster 400 ci
1990 F150 351 ci SuperCharged
48 Harley Pan Head 76 ci
2016 Nissan Altma
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01-30-2009, 03:54 PM
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#478
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Fast & Filthy
Join Date: Jun 2008
Posts: 3,840
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Quote:
Originally Posted by Vettezuki
Well, in any event, these pistons have to come out to either be cut or replaced. . . right?
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No. There is a tool that you can buy that allows you to cut the piston by installing the head and using the valve guide. It's made by Isky Cams. |
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01-30-2009, 03:56 PM
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#479
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I, Vettezuki
Join Date: Feb 2006
Posts: 14,754
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Does fly cutting affect the balance, or as long as it's done consistently the difference will be too small?
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01-30-2009, 04:00 PM
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#480
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Fast & Filthy
Join Date: Jun 2008
Posts: 3,840
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Ben, Are you and Adam going to stop by tomorrow to check out the car? I'm going to work on the cage tomorrow and see if I can finish it up.
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