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ProMaxx Performance 2171 - ProMaxx Performance Small Block Chevy Aluminum Cylinder Heads



ProMaxx Performance 2171 - ProMaxx Performance Small Block Chevy Aluminum Cylinder Heads
ProMaxx Performance 2171 - ProMaxx Performance Small Block Chevy Aluminum Cylinder Heads
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JEGS Part Number: 723-2171

185cc Aluminum Cylinder Heads
  • Small Block Chevy
  • 2.02''/1.60'' Valves
  • 185cc Intake Runner
  • 72cc Combustion Chamber
  • Straight Plug
  • Assembled
  • Sold as pairs

    ProMaxx Performance Small Block Chevy Aluminum Cylinder Heads

    The ProMaxx Performance Small Block Chevy Cylinder Heads are manufactured from cast aluminum and are offered with straight or angled spark plug ports, a variety of intake port runner, combustion chamber and valve sizes to work on all of your performance engine builds from mild to wild!

    Features
  • All New Parts and Castings
  • Accepts Perimeter Bolt Valve Covers
  • Stainless Steel Valves
  • 3/8" Screw-In Studs and Guideplates
  • Sold In Pairs
  • Assembled in the USA

  • Items similar to ProMaxx Performance 2171

    ProMaxx Performance 2171

    Manufacturer's Part Number:
    2171
    Rated 2 out of 5 by from Bad quality I bought the heads a month ago and installed them. These are on my Chevelle that I do not drive much. There is only a 3 month warranty which I feel shows how this manufacturer feels about their product. After about a half hour of warming the engine up, I backed the car out of the garage and noticed coolant starting to come out of the right side exhaust. I quickly pulled the car back into the garage and shut it down. At this point the coolant was steadily coming out of the exhaust like a garden hose running about 1/2 flow. I immediately removed the spark plugs and found no. 4 coolant pouring out. I removed the head and found a bb sized hole in the combustion chamber casting. I was told they were sold as a set so I needed to return them both for warranty which I did not feel comfortable leaving the other one on any way. When I called tech support before disassembling the head, they mentioned possibly a bad casting which leads me to believe they have had some bad castings in the past. Needless to say I have more down time and am missing a few car shows. I am displeased that they might know of the issue and still send out a bad quality product which in turn cost me quite a bit of time in the shop and more money in parts. I should have just spent the extra money in the first place and bought a better brand. I would have thought jegs would not sell this type of quality.
    Date published: 2015-06-04
    • 2016-02-12T10:17CST
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