ok i got a 383 stroker kit. but i ran short on money to build it so it will be awhile before it gets built. i bought a ls1 block to put it all in and all that good stuff. but now that i have to wait to build it i had some ideas. i can get a set of 4" pistons made and buy a 6.0 block and do a 402. i have to get the made because this kit has 6.2 inch rods instead of the normal shorter rods. so i had another idea. if i'm gonna get pistons made for a 402. i still have a ls1 block and a 5.3 long block. so i could use my 5.3 crank in the ls1 block and put those pistons made for the 6.2" rod and 4" crank in there and just get some rods made for the application i think if i did the math right i would need 6.578" rods and it would give me a rod stroke ratio of 1.816:1 which i would think would be good for a nice high reving eng for a car project.

well hows it sound? and what would the rods cost. i want to get some pistons made anyway because these are flat tops and i want dished pistons for a turbo eng. got my eye on that trick performance kit.

 

The 6.2 rod, 4.000" stroke pistons will have ~1.040" compression height figured on the 9.240" deck height.
3.622/2=1.811
9.240-1.811-1.040=6.389" rod.

 

1.764:1 thats even better. i didn't know the exact formula so i just guestimated i guess. so what do rods run? and how does this sound for a ls1 build for a car?

 

Compression
Distance 1.050

as per http://www.jepistons.com/cat/je/auto...b/15_ls1.shtml

 

If that's the case then they are .010" out of the hole. Which is good. Or if you wanted it zero'd with the deck then you'd need a 6.379" rod. I'd probably go with a 6.385" to have it .006" out of the hole. Now getting custom rods made may be a little steep. Maybe to the point that just buying a set of off-the-shelf rods and another set of pistons and selling yours would be cheaper.

 

Well lookie there. I just clicked on the JE link and it even says they are .010" out the hole, with it giving a + number in the deck height designation.

 

which is funny because eagle swears up and down that they are .010 in the hole. and seemed to get made when i ask if they were sure. i figured the only other thing i could do would be to put it together to find out for sure lol.