WISECO 5095H3 4.030 1.125 pin
11-05-2010, 04:35 PM
#1
WISECO 5095H3 4.030 1.125 pin Category: Racing Parts
Price: $350
Location (State): AR
Item Condition: Used
Shipping Information: Item Can be Shipped
Engine: LT1/LT4
LS Engine?: Non-LS Part
This one has a small scratch on the skirt
same piston
Comes with the oil support rings. 350 Shipped.
11-06-2010, 12:43 PM
#4
Fex77k is my brother so I would like to add a bit to his post.
Honestly we still aren't sure what caused the scratched cylinder wall, was it our old machinist, was it during assembly, was it during running. Either way it doesn't really matter, when we tore down the engine the block needed to go another .010" over on the number 7 or 8 cylinder, I can't remember now which one. We ended up buying some JE Pistons Part#:138094 that are 4.040" bore just so I can reuse the 3.75" crankshaft and the 6" rods. The only markings on the pistons are in the one picture above.
These pistons are $98 apiece if you go through Wiesco.
You will need to buy the ring set for these pistons, and the spiro locks. I'll put the oil rail supports in there as well and you can decide to replace those if you want.
Link to individual pistons
Link to the piston kit with pins, locks, rings, rail supports
If anyone wants I'll take multiple pictures of each piston if they have any concerns.
Honestly we still aren't sure what caused the scratched cylinder wall, was it our old machinist, was it during assembly, was it during running. Either way it doesn't really matter, when we tore down the engine the block needed to go another .010" over on the number 7 or 8 cylinder, I can't remember now which one. We ended up buying some JE Pistons Part#:138094 that are 4.040" bore just so I can reuse the 3.75" crankshaft and the 6" rods. The only markings on the pistons are in the one picture above.
These pistons are $98 apiece if you go through Wiesco.
You will need to buy the ring set for these pistons, and the spiro locks. I'll put the oil rail supports in there as well and you can decide to replace those if you want.
Link to individual pistons
Link to the piston kit with pins, locks, rings, rail supports
If anyone wants I'll take multiple pictures of each piston if they have any concerns.
Last edited by noice; 11-06-2010 at 01:11 PM. Reason: Sorry, meant 3.75" on the crankshaft.
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12-08-2010, 06:08 PM
#10
Deck Height: 9.025"
Bore: 4.030"
Stroke: 3.75"
Rod Length: 6"
Chamber Volume: 58cc
Gasket Thickness: .042"
Piston Dome Volume: -13cc Dish
Pin Height: 1.125"
This makes for a piston that is in the hole about .025" and an 10.22:1 Static Compression Ratio. However the block was decked some which means the deck height is probably more like 9.01 which would make the piston .01" in the hole and the compression more like 10.83:1.
A short explanation is that it was around 10.5:1.
Bore: 4.030"
Stroke: 3.75"
Rod Length: 6"
Chamber Volume: 58cc
Gasket Thickness: .042"
Piston Dome Volume: -13cc Dish
Pin Height: 1.125"
This makes for a piston that is in the hole about .025" and an 10.22:1 Static Compression Ratio. However the block was decked some which means the deck height is probably more like 9.01 which would make the piston .01" in the hole and the compression more like 10.83:1.
A short explanation is that it was around 10.5:1.
01-05-2011, 06:06 PM
#11
Deck Height: 9.025"
Bore: 4.030"
Stroke: 3.75"
Rod Length: 6"
Chamber Volume: 58cc
Gasket Thickness: .042"
Piston Dome Volume: -13cc Dish
Pin Height: 1.125"
This makes for a piston that is in the hole about .025" and an 10.22:1 Static Compression Ratio. However the block was decked some which means the deck height is probably more like 9.01 which would make the piston .01" in the hole and the compression more like 10.83:1.
A short explanation is that it was around 10.5:1.
Bore: 4.030"
Stroke: 3.75"
Rod Length: 6"
Chamber Volume: 58cc
Gasket Thickness: .042"
Piston Dome Volume: -13cc Dish
Pin Height: 1.125"
This makes for a piston that is in the hole about .025" and an 10.22:1 Static Compression Ratio. However the block was decked some which means the deck height is probably more like 9.01 which would make the piston .01" in the hole and the compression more like 10.83:1.
A short explanation is that it was around 10.5:1.
