transamsam98

iTrader: (56)

Anybody have any ideas im looking for a 3.90 crank Wich should give me a 382 with the max hone. any one have any ideas?

1994z

iTrader: (48)

would also like to know.

Sharpe

iTrader: (7)

Eagle.

waterbug1999

iTrader: (3)

Can you use cheap and LS1's in the same sentence?

1994z

iTrader: (48)

no you really cant. but you would think by now you wouldnt have to pay 800.00 for a crankshaft.

waterbug1999

iTrader: (3)

And thats a "cheaper" one.. Ive learned the hard way to not cut corners and use "cheaper" parts, it will end up costing more in the long run.

aNuBiS

iTrader: (25)

Do they even make crank sizes for LS series engines between the 3.62 & 4.0" stroke?

1994z

iTrader: (48)

yes,eagle makes one 3.900- with a 3.905 bore it comes to 374ci. a 4.00 bore would make a 383

aNuBiS

iTrader: (25)

Does it require any machining to a block to use that 3.9" crank?

1994z

iTrader: (48)

not sure, someone on here should know.

Y2KblueZ-28

I recommend a SCAT crank iwould run the 4.000" stroke that way you wouldnt have to hone as much to get the cubes. Scat is just as good as eagle in my opinion.

03_SS_22

iTrader: (5)

eagle has the cheapest crank i think

1997bird

iTrader: (2)

Not for the crank, but it would if you need to change the bore size.

drain89

iTrader: (13)

SGI supposedly now makes a nodular iron 4.00" stroker crank for LS engines. They also make a forged 4340 one. They also make some nice looking 6.100 and 6.125 SBC Severe Duty I-beam and lightweight I-beam rods that'll work in our motors if you get pistons that use .927 dia pins.
They're imports i'm sure but so is eagle, scat, compstar, and K-1.

Here's a link:
http://www.sgiperformance.com/pdf/webcateloge.pdf
Pg 4 for the cranks
Pg 6 & 7 for the rods

david vericker

iTrader: (1)

The 3.905 bore (hone cylinders) is a increase of only "one" cubic inch.The remaining increase in cubic inches comes from the stroke...3.90 or 4.00 crank.

aNuBiS

iTrader: (25)

But wouldnt there need to be some clearancing done if you put in a 3.9" crank for the rods now, because of the increased stroke?

Jason 98 TA

iTrader: (4)

4" will put you at 382 cubes. The 3.900 stroker crank has been discontinued by eagle We stock the 4" stroke cranks, and we can put together a complete rotating assembly for you! Give us a call if we can help.