Pistons and rods
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Fleet Mechanic
Joined: May 2004
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From: Montana
Pistons and rods
im wondering what style pistons every one uses on there 351w. Im looking at the TRW flattops 1.772c/h p/n h336p but they have the dished pistons L2378F im not sure what to go with I use flattops on my FE builds but im not sure about the windsors. Also what is the rod length and deck height for a 92 351w? Im trying to figure out my CR for my build.
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From: Still under the hood in O
Rods are 5.956 and deck height is 9.5.
With the 1.772 c/h piston that put them about .022 in the hole.
I can't remember what the combustion chamber is on the E7's (anybody?).
Assuming -4cc valve relief's and 62cc chambers, stock bore with a .041 head gasket (stock replacement) they put you about 10.07:1 with a .063 quench. While the quench is typical for stock, this won't work with the compression with pump gas without a good sized cam and VERY conservitive timing curve.
What is the dish volume on the L2378F?
With the 1.772 c/h piston that put them about .022 in the hole.
I can't remember what the combustion chamber is on the E7's (anybody?).
Assuming -4cc valve relief's and 62cc chambers, stock bore with a .041 head gasket (stock replacement) they put you about 10.07:1 with a .063 quench. While the quench is typical for stock, this won't work with the compression with pump gas without a good sized cam and VERY conservitive timing curve.
What is the dish volume on the L2378F?
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Fleet Mechanic
Joined: May 2004
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From: Montana
Thanks I plan on going with a larger than stock cam I just need to find one that is california legal to run. 9 to 10:1 is what im looking for the L2378F pistons have a .160 Dish I think that will work out to around 16cc's I know .190" is 22cc's that isnt good.
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From: Still under the hood in O
Okay, same motor except with the 64cc chambers - 9.84:1, but with the same quench of course.
ASSUMING 16cc dish, again same motor, lowers it to 8.71:1.
Have the block zero decked and use the 16cc dish------9.1:1
ASSUMING 16cc dish, again same motor, lowers it to 8.71:1.
Have the block zero decked and use the 16cc dish------9.1:1
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Fleet Mechanic
Joined: May 2004
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From: Montana
Right thats what i was figuring but ill be using 60cc edel heads with 2.02 valves.
Any ideas on a cam choice thats better than stock a little hotter i was looking at the Crane 901.
Any ideas on a cam choice thats better than stock a little hotter i was looking at the Crane 901.
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