Westech Performance 496 Chevy Big Block Build - A Monster Is Born

Westech Performance Builds A 496CI Brute

Sean Haggai Nov 1, 2008 0 Comment(s)

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  DESCRIPTION PN PRICE
AFR Cylinder heads (complete) 2101 $2,485
ARP Head bolts 135-3703 $70
COMP Rockers 1.7:1 Pro-Magnum 1320-16 $318
  Intake pushrods (8.580-inch) 7906-8 $88
  Exhaust pushrods (9.470-inch) 7757-8 $136
  Camshaft 11-825-9 $328
  Lifters 888-16 $501
  Adjustable billet timing gear 8110 $214
  Two-piece timing cover 271 $258
  Spacer VH311 $20
EDELBROCK Victor Jr 454-R manifold 2902 $225
FEL-PRO BBC gasket kit 2805 $124
GM Gen VI big-block 12561353 $1,200
HOLLEY 1,000 cfm 80513-1 $740
LUNATI Rotating assembly EA496FMTD $4,380
  Crank 4.250  
  Rods 6.800  
  King rod bearings CR849HP  
  King main bearings MB5147HP  
  Wiseco 48cc pistons WISK238A6  
  Wiseco rings WIW100F8-4310-5  
MILODON Oil pan 30955 $304
  Oil pump 18760 $68
  Oil pump pickup 18201 $57
MSD Distributor 85561 $253

Dyno Chart

RPM LB-FT HP
3,500 579.7 386.3
3,600 579.6 397.3
3,700 583.0 410.7
3,800 587.1 424.8
3,900 589.6 437.8
4,000 591.2 450.3
4,100 593.8 463.6
4,200 597.8 478.1
4,300 602.7 493.5
4,400 607.7 509.1
4,500 614.3 526.4
4,600 621.5 544.3
4,700 629.9 563.7
4,800 637.0 582.2
4,900 642.1 599.0
5,000 645.5 614.5
5,100 649.2 630.4
5,200 653.2 646.7
5,300 656.8 662.8
5,400 658.3 676.9
5,500 657.8 688.8
5,600 656.0 699.5
5,700 653.8 709.6
5,800 651.8 719.8
5,900 650.2 730.5
6,000 648.1 740.4
6,100 644.9 749.1
6,200 641.2 756.9
6,300 637.7 764.9
6,400 633.3 771.7
6,500 627.6 776.7
6,600 619.1 778.0
6,700 611.5 780.1
6,800 602.2 779.7
6,900 593.2 779.3
7,000 583.8 778.1
  Average torque 623
  Average power 625

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