Product Summary

  • High-performance EV8 stainless steel intake valves, sold as an 8-pack
  • 2.020 in. head diameter and 0.3410 in. stem diameter
  • 5.010 in. overall length with 0.250 in. tip-to-groove and single lock groove
  • Swirl-polished head improves airflow into the combustion chamber
  • Undercut stem for improved flow; custom head machining may be required
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Key Specs

MFG. Part #73004-8
BrandEnginetech
Material TypeStainless Steel
Groove Count1
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Need To Know

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Enginetech 73004-8 Details

Enginetech 73004-8 high performance stainless steel intake valves: 2.020 in. head, 0.3410 in. stem, 5.010 in. overall length, sold as an 8-pack.

High performance. .3410" stem. 2.020" head. 5.010" OAL. 0.250" TTG. EV8 stainless. Undercut stem. Swirl polished. (8 pack). **Custom head machining may be required.

Specifications:

  • Stem Diameter: 0.3410 in.
  • Lock Grooves: 1
  • Nominal Stem Diameter: 11/32 in.
  • Head Diameter: 2.020 in.
  • Standard Head Diameter: 2.020 in.
  • Overall Length: 5.010 in.
  • Stem: Chrome Stem

Engine Applications:

  • 4.9L / 302 OHV V8 16V Chev. Small Block 4.000" Bore 67-69 (GM)
  • 5.3L / 327 OHV V8 16V Chev. Small Block 4.000" Bore 62-69 (GM)
  • 5.7L / 350 OHV V8 16V Chev. Gen I Small Block 4.000" Bore 67-02 (GM)
  • 5.7L / 350 OHV V8 16V Chev. 4.000" Bore 68-02 (GM, Chevrolet)
  • 6.3L / 383 OHV V8 16V Chev. Small Block Stroker 4.000" Bore 67-02 (GM)

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Enginetech 73004-8 Specifications

KEY SPECS
MFG. Part #73004-8
BrandEnginetech
Material TypeStainless Steel
Groove Count1
GENERAL
Valve Head Diameter2.020"
Valve Stem Diameter0.3410"
Length5.010"
Valve Tip Length0.250"
Undercut StemYes
Swirl-PolishedYes

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