Steve1969LS1

iTrader: (1)

Like the title says.

Will a 4.125 stroke (Lunati) crank clear an f-body oil pan and windage tray?

Rods would be 6.125 K1 H-beams.


With a 4-inch Lunati crank I had to space down the windage tray a touch and mod the front of the pan. But, this was with Lunati H-beam rods and I heard they take up more realestate.


What say you?

1CAMWNDR

iTrader: (21)

Not without modification, no. My 4.100" Compstar crank needed the tray spaced down and the front of the pan clearanced.

davidws6

iTrader: (36)

I had to put spacers on the tray. The Pan cleared fine for my 4.125 crank.
I used the Lunati pro rods.

Whistler

iTrader: (46)

The last gen III I built using a 4.125 crank (Cola) and H-beam rods (Lunati IIRC) required shims for the windage tray. However the front of the oil pan needed to be grind down to clearance the 1/2 counterweight. The clearancing all but ground through the pan,leaving mabye .010 to give .090 clearance.
I welded a small patch of al. to the bottom of the pan to reinforce it.

1CAMWNDR

iTrader: (21)

Mine was hitting the pan with one of the ARP rod bolts on Eagle 6.125" rods.

Steve1969LS1

iTrader: (1)

Good deal. I have a fabbed Canton pan so I can "clearance" it easily. and spacing down the windage tray is easy (already had to do it a bit with the 4" stroke.)

So I might as well build a 454 LS engine then (4.185 bore x 4.125 stroke)

Thanks

rsz288

454 for Penny or another project?

Bling some more !

The Alchemist

iTrader: (19)

454 is a cool sounding motor.... do it.

Reaper SS

iTrader: (9)

Had to shim the crap out of mine and modify the pan a little but im using Lunati pro billet 6.125 rods that pull the bolts up on the sides more than the eagle's.