pushing the evelope of the 3500

[Nightingale]

Lol I was gonna say those numbers weren't adding up....pistons would be sticking out almost a quarter inch above the deck lol.

[ForcedFirebird]

Man, we are serious here :P

I'm not kidding when I tell you John and I have been on the phone literally for hours planning this build since about November.

Don't mess with us like that

[Keoki1978]

It was all just a BS thing, I'd love to build a stroker 3500 to a 3700 with titanium rods, billet steel crank. I didnt do the math but your right, I couldnt use 5.850 length rods with a 1.460 comp height and a 3.504 inch stroke. But I suppose I'd be able to use a 6 inch rod with a 1.154 comp height pistons. Anyway, I'm in tampa area by the airport, or town n country area for those that know the area..

[ForcedFirebird]

keoki, where in Tampa are you? I'm up in Bradenton a few times a year and would like to check out both yours and Joseph's cars

[Driver_10]

I got goose-bumps reading your description. (wouldnt mind trading engines with ya for a day.)

However, you stated the were you able to use 5.850 rod with a stroke increase of .194. With a compression height of 1.460, I will have to de-stroke the crank to enable the use of 5.850 rods and a .070 gasket.

Also, Id love to see some pics of your intake, billet girdle, oil-squirter mounting and whatever other pics you have. I could use more "fodder" for my own ideas. (Its cool to see these engines being developed)

[sprucegagt]

By offset grinding the crank rod pin .064". Since the crank pin is 2.249" and his rod big end is 2.1", there SHOULD be enough room.

We have spent many nights on the phone coming up with what will work, since he already had the pistons, copper gaskets and knew the rods available.

Doh! For some reason I was thinking the offset cut would me more than that.

[ForcedFirebird]

How are you coming up with a total destroke of .128"?

By offset grinding the crank rod pin .064". Since the crank pin is 2.249" and his rod big end is 2.1", there SHOULD be enough room.

We have spent many nights on the phone coming up with what will work, since he already had the pistons, copper gaskets and knew the rods available.

[Keoki1978]

Block Standard Bore (3.700)
Stroked out .194" (from 3.31 to 3.504)
crank pin diam. 2.100 (uses Cunningham Titanium Rods)
connecting rod 5.850 (original 5.900)
comp hiegth 1.4600
piston to deck +.030"
head-gasket thk .070"-.071" crushed (annealed copper style)
CR 9.6:1 apprx.
3500 steel crank replaced with billet steel knife-edged and lightened
(installing oil-squirters on all cyl)
dry sump oil system
total displacement- (226 C.I.) true 3.7L

Parts list

Sheet metal intake
CNC ported LX9 heads with "Manley" Titanium valves and comp cams #122 springs and steel retainers
Wottech 65mm TB w/ adapter
forged "Venolia" pistons
Cunningham 5.850 "Titanium" I-beam rods (bushed) .927 piston pin & 2.225 crnk-pin bore
Turbonetics 60-1 turbo
JAZ 50mm ss WG
Synchronic BOV
Electromotive Tec 3 engine management system
7lb fidanza aluminum flywheel.
Billet main gridle with ARP hardware

(Final Combo built for 8500rpm max shift-point w/ absolute 9000rpm red-line)

X-trax 6 speed sequential shift tranny
X-trax 12-bolt rear-end w/ 3.42 gears and all the "fixins"

The answer is, this motor survive the rated 750hp at the tires without stretching mains or studs.

Id love some feedback.

[sprucegagt]

How are you coming up with a total destroke of .128"?

[Superdave]

Ummm, wasn't that a gen 1 block? Could have sworn it was a 3.4....

same difference.. internally atleast.

[ForcedFirebird]

http://60degreev6.com/forum/f96/4-bolt-mains-t40048

[ForcedFirebird]

he was running a gen2 block so no cross-bolts.

Ummm, wasn't that a gen 1 block? Could have sworn it was a 3.4....

[Driver_10]

he was running a gen2 block so no cross-bolts.

Oooooo! Thats good to know! I should surely be able to 550 to the wheels.

[Superdave]

I certainly hope so.

I wouldnt normally have my doubts, untill I read a thread some time ago about a guy with 3.1l, 465 rwhp'd chevette that had stretched mains. Im not sure if that was the crossed bolted block or not. He never specified.

he was running a gen2 block so no cross-bolts.

[ForcedFirebird]

It just makes me sad, knowing I sold you bits and pcs of a motor and it will probably run before mine