Bink

I know I could find this by doing a couple searches. But, could someone put up the Bore and Stroke for :

350 Smallblock (1969 ^ era) GenI

400 Small block (1970^era?) GenI

402 LS2

427 LS7

402 Big Block (1970 ^ era)

427 Big Block (1966^ era)

Thanks!!

NO-OPTION-2002

iTrader: (2)

Hello

350 1967-2003 4.001" x 3.480" Includes Vortec & LT1/LT4

400 1970-1980 4.126" x 3.750"

LS2(364) 2005 4.001" x 3.622" (same with LQ4/LQ9)

LS2(402) 2005 4.001" x 4.000" (same with LQ4/LQ9)

LS7(427) 2006 4.125" x 4.000" (guesstimates)

402 1970-1972 4.126" x 3.760"

427 1965-1969 4.251" x 3.760"

Hope this helps

Bink

Thanks, man! That's a big help.

NO-OPTION-2002

iTrader: (2)

Anytime!

SSCamaro99_3

iTrader: (1)

4.00 x 4.00

NO-OPTION-2002

iTrader: (2)

OOPS... What he said!

Chicago Crew UnderBoss

iTrader: (1)

The stroke and bore on the new LS7 motor is 4.125 x 4.00 stroke=428 cubes, rounded down to the all mighty and famous 427 CID!!!

Bink

My mistake as the LS2 is a 364ci which has the 3.62 stroke - i.e. NOT a 402ci.

See below info from GM:

Manufacturing location: Bowling Green , Kentucky
Engine 6.0L V-8 LS2 7.0L V-8 LS7
Displacement (cu in / cc): 364 / 5967 427 / 7011.3
Bore & stroke (in / mm): 4 x 3.62 / 101.6 x 92 4.125 x 4 / 104.8 x 101.6
Block material: cast aluminum cast aluminum
Cylinder head material: cast aluminum cast aluminum
Valvetrain: OHV, 2 valves per cylinder OHV, 2 valves per cylinder
Fuel delivery: SFI (sequential fuel injection) SFI (sequential fuel injection)
Compression ratio: 10.9:1 11:1
Horsepower
(hp / kw @ rpm): 400 / 298 @ 6000 500 / 373 @ 6200
Torque (lb-ft / Nm @ rpm): 400 / 542 @ 4400 475 / 657 @ 4800

Spenser309

anyone know a 283 gen 1 bore x stroke? I was thinking about rebuilding the one in my garage.

70 TA

3.875 Bore x 3.000 Stroke

Using a 4" bore block would give you the classic 302

Spenser309

thx!!