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1974 Pontiac Ventura Exhaust Manifold Gasket Set 8 Cyl 5.7L Mr Gasket

4 on 3 ratings
  • Features:
    • Has A Steel Core With Graphite Facing
    • Graphite Facing Has Excellent Thermo-Conductivity
    • High Recovery Mat Allows For Better Seal Retention
    • Can Be Trimmed For Port Modifications
    • Expanded Steel Core For Stability
    • These Gaskets Have Slotted End Holes
  • Manufactured from high-temperature steel core/graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head. Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp-load. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track use.
This Part Fits the Following OEM/Substitute Numbers:
1424

Additional Fitment Information:
Vehicle Block CC Engine CID
1974 Pontiac Ventura V 5733 8 Cyl 5.7L 350
Brand Mr Gasket
Part # G125921
Condition New
Warehouse B
Mr Gasket

Ventura Mr Gasket Exhaust Manifold Gasket Set 5921 1974 Pontiac
  • Oval/D Port Shape; Port Dimensions W-1.55 in. x H-1.94 in.
  • Ultra Seal Exhaust Gasket Set; Oval/D Port Shape; Port Dimensions W-1.55 in. x H-1.94 in.;
  • Ultra Seal Exhaust Gasket Set

    • General

    Gasket Line
    Ultra-seal
    WARNING CA Proposition 65
    No
    Port Shape
    Oval D-port
    Collector Gaskets Included
    No
    Engine Make/Size
    Pontiac V8
    Thickness
    0.062 In.
    Port Size
    1.460 In. X 1.930 In.

    Packaging

    package quantity
    1
    length
    2.00 in
    width
    3.20 in
    height
    22.70 in
    weight
    0.41 lb
    Information on technical characteristics, the delivery set, the country of manufacture and the appearance of the goods is for reference only and is based on the latest information available at the time of publication.
    1. Jimmy Stewart
      05 Aug, 2014
      Excellent update for 'gasketless' GM TBI small-blocks - proper port match. Don't forget to replace the old manifold bolts, as they won't hold torque after years of hot/cold cycling.
    2. Tom C
      04 Jun, 2013
      These are beautiful gaskets. I am thinking about getting an extra set to mount on the wall in my ManCave. I expect my rating will go up after the engine is reinstalled and running again.
    3. Bloose
      10 Oct, 2011
      When I first installed these I had a leak on the passenger side header. When I puller the header I found that the gasket didn't cover part of the header flange. In reality the problem was more with the header than the gasket but the gasket is also somewhat at fault. The reason I say this is because the gasket port size is a good bit larger than the port on the head. If they offered different gaskets for different part sizes you could likely get a better fit. I.E. one gasket for stock ports, one for larger ports, etc. Much as they do for Ford and Chevy. In the end though I cut the gasket into separate pieces for each port section. I then elongated the holes for the offending port and got it to match the header flange. No more leaks and is holding up well at 3500 miles.B

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