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| Scaffy |
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I'm looking for pistons to suit my Twisted Wedge heads, but in a 4.125" bore. Was talking to a guy today and he said the 23* Chevy 400 piston should do the job. Does anyone know if the valve reliefs in the 23* piston will suit the twisted wedge valves?
The 347 pistons have a compression distance of between 1.080 - 1.1". I've found some of the chev pistons with the 4.125" bore but with compression distances of either 1.062" or 1.125". I figure that if I use the smaller one, I'd be losing compression, but if I used the 1.125, could I just go with a thicker head gasket? Assuming the 23* valve relief is suitable, that is.
_________________ Trickflow Street Heat top end kit, 70mm BBK TB & EGR, 24lb injectors, Underdrives & 3.73s: 275rwhp - 13.15@105mph NA / 12.37@116mph N20 |
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| Scaffy |
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Looks like I needn't worry about the Chevy pistons after all.
I just found some 4.125 pistons to suit twisted wedge at Diamond. Are Diamond pistons any good?
_________________ Trickflow Street Heat top end kit, 70mm BBK TB & EGR, 24lb injectors, Underdrives & 3.73s: 275rwhp - 13.15@105mph NA / 12.37@116mph N20 |
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| banarcus |
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Scaffy wrote: I just found some 4.125 pistons to suit twisted wedge at Diamond. Are Diamond pistons any good? Yes. |
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| millard455 |
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tried JE? i know they do them to suit the 4.125 bore but im not sure if they do any to suit your heads.
_________________ EL XR8 SERIES 2, 5SPD, HOT CHILLI RED, 200 ODD RWKW OF V8 FUN AND GAMES |
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| s-tranzor |
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what the hell are you up to scaffy?
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| EBXR8380 |
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Diamond are up there with J.E C.P etc..
_________________ As in ZOOM 126 edition |
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| Scaffy |
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Cheers fellas. Diamond seem to be the only ones I can find online with the pistons to suit twisted wedge in a 4.125" bore. I'll probably end up going with them.
s-tranzor, just doing a bit of research mate for what should be a stout bottom end rebuild. Just doing everything the hard way!
_________________ Trickflow Street Heat top end kit, 70mm BBK TB & EGR, 24lb injectors, Underdrives & 3.73s: 275rwhp - 13.15@105mph NA / 12.37@116mph N20 |
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| EBXR8380 |
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Can I ask what price they are ??
_________________ As in ZOOM 126 edition |
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| Scaffy |
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Off the top of my head, they're about US$620 or so. 6 something anyway.
_________________ Trickflow Street Heat top end kit, 70mm BBK TB & EGR, 24lb injectors, Underdrives & 3.73s: 275rwhp - 13.15@105mph NA / 12.37@116mph N20 |
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