Gen.I, "Small Journal"

ENGINE	MAIN	ROD	NOTES
265	2.30"	2.00"
283	2.30"	2.00"
302	2.30"	2.00"
327	2.30"	2.00"

Gen.I, "Medium Journal", includes "Vortec" 305 and 350 thru '98

262	2.45"	2.10"
267	2.45"	2.10"
302	2.45"	2.10"
305	2.45"	2.10"
307	2.45"	2.10"
327	2.45"	2.10"
350	2.45"	2.10"

Gen.I, "Large Journal"

400

2.65"

2.10"

Gen.II, "Medium Journal", includes "L-99" 265, "LT-1" 305, "LT-4" 350

265	2.45"	2.10"
305	2.45"	2.10"
350	2.45"	2.10"

Gen.III, includes '97-'2000 "LS-1" Corvette, Firebird, Camaro

346

2.558

2.10

Gen.I combination, using Gen.I 400 crank in Gen.I 350 block
400 crank, Mains cut to 2.45"-Rods-2.10"

383

2.45"

2.10"

Non-production

Gen.I combination, using Gen.I 350 crank in Gen.I 400 block
"Spacer" or "thick" main bearings with 350 crank-Rods-2.10"

377

2.45"

2.10"

Non-production

Gen.II combination, using Gen.II 265 "L-99" crank in Gen.II 350 block

302

2.45"

2.10

Non-production

Corvette "ZR-1", DOHC, "LT-5"

350

2.76

2.10"

 
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