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Lisle 21100 Large Valve Lapper

by Lisle
28 customer reviews

List Price: $151.86
Price: $6.99 & FREE Shipping on orders over $35. Details
You Save: $144.87 (95%)
In Stock.
Ships from and sold by Amazon.com.
  • Thick handles for easy lapping
  • 1-1/8" and 1-3/8" Diameter cups for larger valves
  • Unique locking tab positively secures cups to sturdy handles
  • Eliminates slippage
  • Skin-packed
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51 new from $4.80

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$6.99 & FREE Shipping on orders over $35. Details In Stock. Ships from and sold by Amazon.com.

Frequently Bought Together

Lisle 21100 Large Valve Lapper + Permatex 80037 Valve Grinding Compound, 3 oz. + Lisle 21200 Small Valve Lapper
Price for all three: $20.26

Buy the selected items together


Product Information

Technical Details
BrandLisle
Item Weight4 ounces
Product Dimensions10.5 x 3.6 x 1 inches
Item model number21100
Manufacturer Part Number21100
  
Additional Information
ASINB0009OR8TS
Best Sellers Rank #20,122 in Automotive (See top 100)
Shipping Weight2.4 ounces (View shipping rates and policies)
Domestic Shipping Item can be shipped within U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First AvailableJuly 20, 2005
  
Warranty & Support
Warranty, Parts: Parts
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Product Description

Valve lappers are used for hand lapping valves. This is another quality product brought to you by Lisle.

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

2 of 2 people found the following review helpful By jason on December 7, 2012
Verified Purchase
i ordered this large one thinking it was what i needed but in fact i needed the small one. The measurements given in the product description are of the suction cup size unexpanded. So when i measured my valves this seemed like the one i needed but it ended up hanging over a bit on the smaller exhaust valves. Bear this in mind before purchase. it gets roughly 25% larger cupped down on the valve.

The grip is great on this thing until even the smallest bit of lapping compound makes its way onto it and then you'll start to fight it. keep it clean before every suction and you'll be home free.
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By jwm1941.dec on December 8, 2013
Verified Purchase
I have hand lapped valves since I rebuilt my first engine in 1963. These same tools have been around even longer that that and yet they still do the job. Just be aware time is the enemy of this rubber; meaning these will not last more than 3 or 4 years; but for the price you can afford to throw them away and buy new each time you need them.
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By T-Bone Malone on December 2, 2013
Verified Purchase
Product could use some improving . rubber boots fell off , Wood could be sanded smooth ,could be more robust in construction...
If you need this to do an 8 cylinder head job Good Luck...

It got me through 4 valves , threw it away...
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By UK2TX2CA on March 17, 2014
Verified Purchase
A very nicely formed tool, however the description is wrong, the handle is actually a hard plastic not hard wood ( also does not have Made in USA stamped on it - but the packaging still says the item was made in the USA ).
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Verified Purchase
Works well and does it's job. I'd recommend the one with the smaller suction cups if your lapping a 4 cylinder our similar. This one would seem to work well for higher litre engines... but worked ok on my 1995 Accord.
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Verified Purchase
Nice tool, suction cups are quality and stuck to valves like they are supposed too. The smart tip is to use water base lapping compound instead of oil base so the cups adhere better and cleanup is much easier.
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By JAG on December 17, 2013
Verified Purchase
Redoing the head on my mercruiser marine engine. Valves were large and this came off a few times till I got the hang of doing it smoothly. Recommend going to YouTube to see others do this first.
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By murphy on April 3, 2014
Verified Purchase
this tool did not stick very well to the valves and constantly needed to be re-suctioned. not sure how it could be improved but didn't really work that well.
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Lisle 21100 Large Valve Lapper
This item: Lisle 21100 Large Valve Lapper
Price: $6.99
Ships from and sold by Amazon.com