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What a crank-scraper is and other technical info... Some comments on our products...
Alfa-Romeo, AMC, BMC, BMW, Buick, Buick-Rover, Cadillac, Chevrolet, Chrysler/Mopar, Datsun-Nissan, Fiat-Lancia, Ford, GM, Honda/Acura, IHC, Jaguar, Lotus, Mazda, Mercedes, MGA/MGB, Mitsubishi, Oldsmobile, Opel, Pontiac, Porsche, Renault, Studebaker, Suzuki-Geo, Toyota, Triumph, VW, Volvo

We will try to keep this list updated but if you do not see your engine listed here please ask!  We can  do custom stroker or knife-edge crank designs.  We can provide templates for initial fitting and adjustment. Templates cost $100 and are a separate charge from the scraper pattern chosen.

We have included some representative pictures of the scrapers we make.  If you would like to see a picture of a particular scraper please ask -- we would be more than happy to send one through.

When available (please enquire) our zero-clearance Teflon® scrapers run an additional $130.00 to the cost of the standard steel scraper unless noted.

Remember, your vehicle may have an engine made by a different manufacturer so check both product lines.  If you are still unsure, please contact us.

crank scraper, crank-scraper, crank-scrapper, crank, crankshaft, rod-bearing, main-bearing, connecting-rod, counterweight, piston, windage, windage-tray, windage-cloud, oil pan, oil-pan, oil-aeration, oil-foaming, oil-cloud, racing, drag racing, road racing, drag-race, road-race, road-course, drift, drifting, time-trial, performance, power, horsepower, HP, torque, TQ, friction, vacuum, economy, engine, motor


  New dual windage tray to fit steel pan and stock pickup tube:

Copyright 2002-2024 © All rights are reserved on our product designs. $299.95


This is a dual scraper set that installs on the oil pan rails.  The stock side rail gasket is not used -- you need to use a high quality RTV like Permatex Ultra Black.  The scrapers are made from 16 gauge steel which is about the normal thickness (.060" or 1.5mm) of a stock gasket.  Fitting instructions are included.

The upstroke scraper is of classic design.  The downstroke scraper has leaves or fingers that extend up into the block to strip away windage in the first quadrant ATDC.  This comes after the camshaft has been splash lubricated.  The leaves help collect draining oil from the cam to the side of the pan where a shield helps direct it cleanly down into the sump.  There are small ports at the bend that allow oil to pass through behind the shield.

Many strokes are available -- please specify your engine as the patterns are different; modified patterns for various cranks and rods are possible. Copyright 2002-2023 © All rights are reserved on our product designs.


Copyright 2002-2024 © All rights are reserved on our product designs -- a great deal of hard work goes into each one.

Teflon® is a registered trade mark of E.I. du Pont de Nemours and Company. Only DuPont makes Teflon® resin sourced by Ishihara-Johnson Crank Scrapers from authorized DuPont licensees.

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Jean-Claude 1919-2003
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