Proform 66753 Header Bolts-Black Oxide Finish - Grade 8 Steel - Set of 12 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400
Proform 66753 Header Bolts-Black Oxide Finish - Grade 8 Steel - Set of 12 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400
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Proform 66753 Header Bolts-Black Oxide Finish - Grade 8 Steel - Set of 12 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400

5 stars out of 9 reviews
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Key item features

Proform 66753 PFM66753 WEDGE-LOCKIN HDR BLTS 1L X 3/8
Additional Features
  • Color:Black Oxide
  • Finish:Black Oxide
Current price is $34.99$34.99/lb
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Proform 66753 Header Bolts-Black Oxide Finish - Grade 8 Steel - Set of 12 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400
Proform 66753 Header Bolts-Black Oxide Finish - Grade 8 Steel - Set of 12 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400
current price $34.99
Proform 66753 Header Bolts-Black Oxide Finish - Grade 8 Steel - Set of 12 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400
5 out of 5 Stars. 9 reviews
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Proform 66751 PFM66751 WEDGE-LOCKIN HDR BLTS 3/4L X 3 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400
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ARP 400-1202 Polished 3/8 x .750 SS 12pt header bolt kit
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Comparison Chart:
Vehicle model66753Proform 66753 Header Bolts-Black Oxide Finish - Grade 8 Steel - Set of 12 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400P75-66757Proform 66757 Wedge-Locking Collector Bolts 3/8 Diameter 1.25 Long Black Oxide F8885Trans-Dapt Mini Head Header Bolts (12)MalibuWalker Rear Converter To Resonator Exhaust Clamp compatible with Chevrolet Malibu 2.4L 3.5L 3.6L L4 V6 2008-2012Victor Big BlockEdelbrock Stainless Steel Exhaust Valve for Victor Big Block Chrysler Cylinder Heads66751Proform 66751 PFM66751 WEDGE-LOCKIN HDR BLTS 3/4L X 3 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400400-1202ARP 400-1202 Polished 3/8 x .750 SS 12pt header bolt kit
Vehicle year1988Proform 66753 Header Bolts-Black Oxide Finish - Grade 8 Steel - Set of 12 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400-Proform 66757 Wedge-Locking Collector Bolts 3/8 Diameter 1.25 Long Black Oxide F-Trans-Dapt Mini Head Header Bolts (12)2008Walker Rear Converter To Resonator Exhaust Clamp compatible with Chevrolet Malibu 2.4L 3.5L 3.6L L4 V6 2008-2012-Edelbrock Stainless Steel Exhaust Valve for Victor Big Block Chrysler Cylinder Heads1999Proform 66751 PFM66751 WEDGE-LOCKIN HDR BLTS 3/4L X 3 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400-ARP 400-1202 Polished 3/8 x .750 SS 12pt header bolt kit
Vehicle makeGMProform 66753 Header Bolts-Black Oxide Finish - Grade 8 Steel - Set of 12 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400Ford, ChevroletProform 66757 Wedge-Locking Collector Bolts 3/8 Diameter 1.25 Long Black Oxide FChevyTrans-Dapt Mini Head Header Bolts (12)ChevroletWalker Rear Converter To Resonator Exhaust Clamp compatible with Chevrolet Malibu 2.4L 3.5L 3.6L L4 V6 2008-2012ChryslerEdelbrock Stainless Steel Exhaust Valve for Victor Big Block Chrysler Cylinder HeadsChevroletProform 66751 PFM66751 WEDGE-LOCKIN HDR BLTS 3/4L X 3 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400ARP, Inc.ARP 400-1202 Polished 3/8 x .750 SS 12pt header bolt kit
Vehicle fitment typeSpecificProform 66753 Header Bolts-Black Oxide Finish - Grade 8 Steel - Set of 12 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400SpecificProform 66757 Wedge-Locking Collector Bolts 3/8 Diameter 1.25 Long Black Oxide FSpecificTrans-Dapt Mini Head Header Bolts (12)SpecificWalker Rear Converter To Resonator Exhaust Clamp compatible with Chevrolet Malibu 2.4L 3.5L 3.6L L4 V6 2008-2012SpecificEdelbrock Stainless Steel Exhaust Valve for Victor Big Block Chrysler Cylinder HeadsUniversalProform 66751 PFM66751 WEDGE-LOCKIN HDR BLTS 3/4L X 3 Fits select: 1999-2021 CHEVROLET SILVERADO, 1988-2000 CHEVROLET GMT-400SpecificARP 400-1202 Polished 3/8 x .750 SS 12pt header bolt kit
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5 out of 5 stars
stars9 ratings5 reviews
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Showing 1-3 of 5 reviews

Feb 14, 2015
Retired With Jeeps
5 out of 5 stars review

Great invention !!

2nd time I've used these bolts. I won't use anything else from here on out. Over the years I've had issues with header bolts loosening..what a pain. NOT WITH THESE BOLTS ! Try 'em and you'll like 'em. Kinda pricey........til you use 'em.

Review from jegs.com
Helpful?1Q9WLV58U8Z9141698499
Oct 3, 2016
Justravlin
5 out of 5 stars review

Awesome Locking Header Bolts

I am amazed on how well these bolts and wedges hold. I have rechecked them after a 100 miles and they are the same tightness as when I installed them.

Review from jegs.com
Helpful?1Q9WLV58U8Z9141698499
Jun 12, 2022
Squaresville Nate
5 out of 5 stars review

Still good after the years.

Just like my title says. I installed them the years ago, along with dead soft aluminum gaskets. Perfect combo! Not a leak and not a single issue.

Review from jegs.com
Helpful?1Q9WLV58U8Z9141698499