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Photo of Cyl Head, AFR Enforcer "As-Cast", LS1, 210/82cc, 64cc Chamber, Angle Plug
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Air Flow Research

Cyl Head, AFR Enforcer "As-Cast", LS1, 210/82cc, 64cc Chamber, Angle Plug

Part# : CH35724
Mfg#: 1501
Sold As: Each
Ship Size: Oversize 3
$513.99
List Price: $565.95
You Save $51.96

Color Variation

Due to variations in monitor settings, some colors on this page may appear slightly different from GM originals. In addition, due to color differences in the original GM dye lots, interior product colors may vary slightly.

Fits 1976–1987 Regal View fitment for 57 models
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Fully Assembled or Bare Heads

Budget friendly

Air Flow Research Enforcer series heads are composed of A356 aluminum and utilize the "as-cast" technology which provides extremely accurate and consistent performance on the intake runners, exhaust runners and combustion chambers. These budget friendly heads are offered for SBC, BBC, and LS1 as well as having the option for straight plug, or angle plug for specific applications. Fully assembled heads come with high quality components which are identical on the CNC ported heads, and also available bare (without parts). AFR heads require AFR stud girdles. Please keep the bar code and paperwork shipped with your heads, as they contain all the specs. SBC heads are ideal for operating below 6000 RPM. BBC heads are ideal for operating below 6500 RPM. LS1 heads are ideal for operating below 6300 RPM. Sold as a single piece, two are required per engine.

Notes

  • AFR strongly recommends using 7/16" rocker studs on SBC heads with todays fast cam rates and RPM capabilities.
  • SBC heads with 1.625" O.D springs will require some springs to be removed for access to some head bolts during installation.
  • SBC heads are designed for 5/16" .120" thick-wall pushrods, larger pushrods will not fit without clearancing. BBC heads are designed for 3/8" .120" thick-wall pushrods, larger pushrods will not fit without clearancing.
  • For ideal geometry and wipe pattern on BBC heads, AFR strongly recommends AFR stud mount rockers for applications below 7400 RPM and .790 lift. For applications above these limits shaft mount rockers are typically advised.
  • With some domed aftermarket pistons on BBC applications, it may be necessary to slightly clearance or modify the piston due to more efficient heart shaped combustion chamber designs. Most of the newer designed domed profiles will clear. AFR recommends material be removed from the piston and not the cylinder head. AFR's combustion chamber shapes are very critical to flow and altering the cylinder head can adversely affect flow and power production. It is the customers responsibility to verify proper piston to head clearance.
  • AFR LS1 heads are only machined for center bolt valve covers.
  • GM rocker arms are not designed/engineered to accommodate aftermarket cams or higher spring pressures. At a minimum AFR recommends using the Bushing Trunion Kit on their LS1 heads. Without proper parts you will experience accelerated guide wear.
  • This item is not eligible for any further discounts or promotional pricing.
  • SHIP NOTE: Item exceeds standard ground freight size/weight, and is not eligible for free ground shipping.
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This product is not legal for street use on an emissions-controlled vehicle. It may be used on dedicated competition or pre-pollution-controlled vehicles only. Learn More
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Vehicle Fitment

Year Make Model Application Details
1982 Buick Grand National LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1984–1987 Buick Grand National LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1976–1987 Buick Regal 1978–1987: LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
1978–1987: LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1963–1976 Buick Riviera LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1961–1972 Buick Skylark LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1983–1987 Buick T-Type LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1938–1993 Cadillac 60 Special LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
2013–2019 Cadillac ATS  
1965–1976 Cadillac Calais LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
2003–2019 Cadillac CTS  
1959–2005 Cadillac DeVille 1959–1996: LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
1959–1996: LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1953–2002 Cadillac Eldorado LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1999–2000 Cadillac Escalade  
2002–2023 Cadillac Escalade  
2002–2013 Cadillac Escalade EXT  
1965–1996 Cadillac Fleetwood LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1936–1951 Cadillac Series 60 LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1936–1951 Cadillac Series 61 LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1937–1976 Cadillac Series 62 LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1936–1951 Cadillac Series 63 LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1937–1938 Cadillac Series 65 LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1936–1942 Cadillac Series 67 LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1936–1937 Cadillac Series 70 LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1940 Cadillac Series 72 LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1936–1942 Cadillac Series 75 LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1946–1964 Cadillac Series 75 LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1976–2004 Cadillac Seville 1976–1996: LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
1976–1996: LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
2005–2011 Cadillac STS  
2004–2009 Cadillac XLR  
1947–1955 Chevrolet Advance Design  
1960–1987 Chevrolet C10  
1960–1987 Chevrolet C20  
1960–1987 Chevrolet C30  
1964–1977 Chevrolet Chevelle LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1960–1969 Chevrolet Corvair  
1961–1965 Chevrolet Corvair 95 FC  
1959–1960 Chevrolet El Camino  
1964–1987 Chevrolet El Camino LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1960–1987 Chevrolet K10  
1960–1987 Chevrolet K20  
1977–1987 Chevrolet K30  
1978–1983 Chevrolet Malibu LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1997–2022 Chevrolet Malibu  
1970–1988 Chevrolet Monte Carlo 1970–1977: LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
1970–1977: LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1995–2007 Chevrolet Monte Carlo  
1960–1991 Chevrolet Suburban  
1955–1959 Chevrolet Task Force  
1955–1959 GMC Blue Chip  
1960–1987 GMC C15/C1500  
1960–1987 GMC C25/C2500  
1960–1987 GMC C35/C3500  
1970–1991 GMC Jimmy  
1960–1987 GMC K15/K1500  
1960–1987 GMC K25/K2500  
1977–1987 GMC K35/K3500  
1947–1955 GMC New Design  
1961–1988 Oldsmobile Cutlass 1961–1977: LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
1961–1977: LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1958–1986 Pontiac Bonneville LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1959–1977 Pontiac Catalina LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1962–1987 Pontiac Grand Prix LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1964–1973 Pontiac GTO LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1961–1981 Pontiac LeMans 1961–1973: LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
1961–1973: LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
1961–1970 Pontiac Tempest LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, assembled , 2 req.
LS1 - 210/82cc INT/EXH, 3.190"/1.400" valves - 64cc chamber, angle plug, bare, 2 req.
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