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LS376/515

  Part number:

  

19171225
   

Balanced:

  

Internal
   

Block (P/N 12584727):

  

Cast Aluminum with 6-bolt, cross-bolted main caps
   

Bore x Stroke (in):

  

4.06 x 3.62 (103.25 x 92mm)
   

Camshaft duration (@.050 in):

 

226 degree intake / 236 degree exhaust
   

Camshaft type (P/N 12480110):

  

Hydraulic rolller
   

Compression ratio:

  

10.7:1
   

Connecting rods (P/N 12617570):

  

Powdered metal
   

Crankshaft (P/N 12597569):

  

Nodular Iron
   

Cylinder heads (P/N 12598594):

  

LS3 rectangle port; as cast with 68cc chambers
   

Displacement (cu in):

  

376 cu in (6.2L)
   

Engine type:

  

LS Series Gen IV small-block V8
   

Pistons (P/N 19165089):

  

Hypereutectic aluminum

   

Maximum recommended RPM:

  

6600
   

Recommended fuel:

 

92 octane
   

Reluctor wheel:

 

58x
   

Rocker arm ratio:

  

1.7:1
   

Rocker arms (P/N 10214664 exh):

  

Investment cast, roller trunnion
   

Rocker arms (P/N 12569167 int):

 

Investment cast, roller trunnion
   

Valve lift (in):

  

.525" intake / .525" exhaust
   

Valve size (in):

  

2.16 int / 1.59 exhaust