Identifying Chevy engines

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*[[Chevy engine casting numbers]]
 
*[[Chevy engine casting numbers]]
  
===Mortec===
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==Mortec info==
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===Mortec SBC block casting numbers===
 
*Return to '''[[Identifying Chevy engines #SBC engine casting numbers|SBC engine casting numbers]] ''' above.
 
*Return to '''[[Identifying Chevy engines #SBC engine casting numbers|SBC engine casting numbers]] ''' above.
 
*Return to [http://www.crankshaftcoalition.com/wiki/Swirl_port_SBC_heads#Resources '''Swirl port SBC heads/Resources''']
 
*Return to [http://www.crankshaftcoalition.com/wiki/Swirl_port_SBC_heads#Resources '''Swirl port SBC heads/Resources''']
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400 main journal, splayed steel caps, wet sump, raised cam,  
 
400 main journal, splayed steel caps, wet sump, raised cam,  
 
2-piece rear seal, 9.300" deck
 
2-piece rear seal, 9.300" deck
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</pre>
  
 
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===Mortec SBC head casting numbers===
SMALL BLOCK HEAD CASTING NUMBERS:
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<pre>SMALL BLOCK HEAD CASTING NUMBERS:
  
 
330545.....73......350..........76cc chamber, 2.02”/1.60”
 
330545.....73......350..........76cc chamber, 2.02”/1.60”
Line 574: Line 576:
 
33417369...90-up...350..........Gen. 1 Goodwrench crate motor,  
 
33417369...90-up...350..........Gen. 1 Goodwrench crate motor,  
 
"Hecho en Mexico", 76cc chamber
 
"Hecho en Mexico", 76cc chamber
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</pre>
  
 
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===Mortec BBC block casting numbers===
BIG BLOCK CHEVY BLOCK CASTING NUMBERS:
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<pre>BIG BLOCK CHEVY BLOCK CASTING NUMBERS:
 
NOTE: T = tall deck
 
NOTE: T = tall deck
 
Oval includes both "peanut" (also called "round") ports and large oval ports
 
Oval includes both "peanut" (also called "round") ports and large oval ports
Line 662: Line 665:
 
24502572.....................4-bolt, 4.5" bore Olds DRCE 2, 9.5" deck height
 
24502572.....................4-bolt, 4.5" bore Olds DRCE 2, 9.5" deck height
 
25534402.....................4-bolt, 4.590" bore Olds DRCE 3, 9.25" deck height
 
25534402.....................4-bolt, 4.590" bore Olds DRCE 3, 9.25" deck height
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</pre>
  
 
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===Mortec BBC head casting numbers===
BIG BLOCK CHEVY HEAD CASTING NUMBERS:
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<pre>BIG BLOCK CHEVY HEAD CASTING NUMBERS:
  
 
330864.....68-84...oval...OPEN...396, 402, 366T, 427T, 454 Truck
 
330864.....68-84...oval...OPEN...396, 402, 366T, 427T, 454 Truck
Line 763: Line 767:
 
25534404...04......rect..........Olds/Chevy, DRCE 3, Pro Stock, aluminum,  
 
25534404...04......rect..........Olds/Chevy, DRCE 3, Pro Stock, aluminum,  
 
for blocks with 4.900" bore spacing
 
for blocks with 4.900" bore spacing
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</pre>
  
 
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===Other Mortec info===
CHEVY SMALL BLOCK CRANKSHAFT CASTING NUMBERS:  
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<pre>CHEVY SMALL BLOCK CRANKSHAFT CASTING NUMBERS:  
  
 
WITH 2-PIECE REAR MAIN OIL SEAL
 
WITH 2-PIECE REAR MAIN OIL SEAL
Line 1,026: Line 1,031:
 
Gen. 1, "Large Journal"
 
Gen. 1, "Large Journal"
 
400...Mains- 2.65", Rods- 2.10"
 
400...Mains- 2.65", Rods- 2.10"
 
  
 
Non-production Gen. 1 combination using Gen. 1 400 crank in Gen. 1 350 block
 
Non-production Gen. 1 combination using Gen. 1 400 crank in Gen. 1 350 block
 
383...400 crank, Mains cut to 2.45", Rods- 2.10"
 
383...400 crank, Mains cut to 2.45", Rods- 2.10"
 
  
 
Non-production Gen. 1 combination, using Gen. 1 350 crank in Gen. 1 400 block
 
Non-production Gen. 1 combination, using Gen. 1 350 crank in Gen. 1 400 block
 
377..."Spacer" or "thick" main bearings with 350 crank, Rods- 2.10"
 
377..."Spacer" or "thick" main bearings with 350 crank, Rods- 2.10"
 
  
 
Gen. 2, "Medium Journal", includes "L-99" 265, "LT1" 350, "LT4" 350
 
Gen. 2, "Medium Journal", includes "L-99" 265, "LT1" 350, "LT4" 350
Line 1,040: Line 1,042:
 
305...Mains- 2.45", Rods-2.10"
 
305...Mains- 2.45", Rods-2.10"
 
350...Mains-2.45", Rods-2.10"
 
350...Mains-2.45", Rods-2.10"
 
  
 
Non-production Gen. 2 combination, using Gen. 2 265 "L-99" crank in Gen. 2 350 block
 
Non-production Gen. 2 combination, using Gen. 2 265 "L-99" crank in Gen. 2 350 block
 
302...Mains- 2.45", Rods- 2.10"
 
302...Mains- 2.45", Rods- 2.10"
 
  
 
Gen. 3, includes '97-2005 "LS1" Corvette, Firebird, Camaro
 
Gen. 3, includes '97-2005 "LS1" Corvette, Firebird, Camaro
 
345...Mains- 2.558", Rods- 2.10"
 
345...Mains- 2.558", Rods- 2.10"
 
  
 
Corvette "ZR1", DOHC, "LT5"
 
Corvette "ZR1", DOHC, "LT5"
 
350...Mains- 2.76", Rods- 2.10"
 
350...Mains- 2.76", Rods- 2.10"
 
  
 
CHEVY BIG BLOCK CRANKSHAFT JOURNAL SIZES
 
CHEVY BIG BLOCK CRANKSHAFT JOURNAL SIZES
Line 1,064: Line 1,062:
 
502
 
502
 
ALL Chevy big blocks used Mains- 2.7488"-2.7495", Rods- 2.20"
 
ALL Chevy big blocks used Mains- 2.7488"-2.7495", Rods- 2.20"
 
  
 
CHEVY W-ENGINE CRANKSHAFT JOURNAL SIZES
 
CHEVY W-ENGINE CRANKSHAFT JOURNAL SIZES

Revision as of 13:23, 5 January 2013

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