aluminum bowtie street

BIG-BLOCK ALUMINUM BOWTIE STREET CYLINDER HEADS

19331422

BOWTIE OVAL-PORT ALUMINUM CYLINDER HEAD, BARE

  • Fully machined
  • Semi-finished for 2.190"/1.880" valves
  • Bronze guides can be finished to 11/32" or 3/8"
  • 290-cc high-velocity oval intake ports
  • 110-cc exhaust ports
  • 110-cc semi-open combustion chambers

19331424

BOWTIE OVAL-PORT ALUMINUM CYLINDER HEAD ASSEMBLY

  • Completely assembled with 2.190"/1.880" 11/32" stem valves
  • 290-cc oval intake ports
  • 110-cc exhaust ports
  • 110-cc combustion chambers

19331425

BOWTIE OVAL-PORT ALUMINUM CYLINDER HEAD ASSEMBLY

  • Completely assembled with 2.250"/1.880" 11/32" stem valves
  • 290-cc oval intake ports
  • 110-cc exhaust ports
  • 110-cc combustion chambers

19331427

BOWTIE RECTANGULAR-PORT ALUMINUM BARE CYLINDER HEAD

This NHRA-legal aluminum cylinder head is a replacement for the L88 Big-Block cylinder heads used on 1968-1971 Corvettes and 1969 Camaros.

  • Aluminum performance cylinder head
  • 315-cc rectangular intake ports
  • Replacement head for P/N 14011076
  • Machined for 2.250"/1.880" 11/32" valve stems
  • 110-cc exhaust ports
  • 118-cc combustion chambers

19331426

BOWTIE RECTANGULAR-PORT ALUMINUM BARE CYLINDER HEAD

  • Bare aluminum performance head
  • Machined for 2.250"/1.880" valves
  • 300-cc rectangular intake port
  • 110-cc exhaust port
  • 118-cc combustion chambers

19331428

BOWTIE RECTANGULAR-PORT ALUMINUM CYLINDER HEAD ASSEMBLY

  • Aluminum performance head
  • Completely assembled with 2.250"/1.880" 11/32" stem valves
  • 300-cc rectangular intake port
  • 110-cc exhaust port
  • 118-cc combustion chambers
  • Uses bare head P/N 19331426

19331429

BOWTIE 572/620 CYLINDER HEAD ASSEMBLY

  • Aluminum head assembly
  • Used in the 572/620 Chevrolet Performance crate engine
  • Completely assembled with 2.250"/1.880" 11/32" stem valves
  • Valve springs for hydraulic roller cams for up to .632" lift
  • 310-cc rectangular intake port
  • 118-cc exhaust port – raised 5/8"
  • 118-cc combustion chamber
  • Not recommended for engines smaller than 572 cid

19331430

BOWTIE 572/720R CYLINDER HEAD ASSEMBLY

  • Aluminum racing head assembly
  • Used in the 572/720R Chevrolet Performance crate engine
  • Completely assembled with 2.250"/1.880" 11/32" stem valves
  • Mechanical roller valve springs – not for use with hydraulic roller cams
  • Good to .720" valve lift
  • 310-cc rectangular intake port
  • 118-cc exhaust port – raised 5/8"
  • 118-cc combustion chamber
  • Not recommended for engines smaller than 572 cid

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.