Put It To The Test: Powerhouse Products Seat Cutter

PPR_Seatcut_0005Powerhouse Products GM LS Retrofit Valve Spring Seat and Guide Cutter 4672

A popular upgrade to allow more lift or accommodate a more aggressive roller camshaft when using traditional small-block Chevrolet heads is to retrofit them with LS-style valve springs. This tool will allow customers to machine their cylinder heads for the correct diameter valve spring. Two versions are offered, a 1.340″ seat cutter for 0.500″ guides and a 1.340″ seat cutter for 0.560″ guides. The durable carbide cutting tip material ensures precision and accuracy. The cutter requires the use of an arbor pilot, which is available in four different sizes.

Features

  • Allow LS-style springs in SBC heads
  • Carbide cutting tip
  • 1.340” seat cutter for 0.500” guide
  • 1.340” seat cutter for 0.560” guide

In The Field 

Brandon says

We used this on a set of LT1 heads, and it cuts like butter. We found a set of conical LS springs and adapted them to a set of aluminum LT1 heads. The stock lift capabilities topped out around .475” and we wanted to run a cam with .525” of lift. We used the one for the .560” guide to plane the seats down smooth and level using a quality cordless drill and a proper arbor (not included). The job was finished up using other cutters (sold separately) to shorten the valve guide and then decrease its diameter to fit the new seals. Great product, worked well.

chart

About the author

PPN Editor

Power & Performance News is the source for news, tech and products that help you get more performance from your vehicle. If powertrain performance projects and hardcore technical content are your interest, Power & Performance News is the publication designed for you. Our acclaimed editorial staff covers all aspects of engine and driveline upgrades with a mission of presenting information that is both interesting and achievable for the “average car guy”.
Read My Articles

Hot Rods and Muscle Cars in your inbox.

Build your own custom newsletter with the content you love from Street Muscle, directly to your inbox, absolutely FREE!

Free WordPress Themes
Street Muscle NEWSLETTER - SIGN UP FREE!

We will safeguard your e-mail and only send content you request.

Street Muscle - The Ultimate Muscle Car Magazine

streetmusclemag

We'll send you the most interesting Street Muscle articles, news, car features, and videos every week.

Street Muscle - The Ultimate Muscle Car Magazine

Street Muscle NEWSLETTER - SIGN UP FREE!

We will safeguard your e-mail and only send content you request.

Street Muscle - The Ultimate Muscle Car Magazine

streetmusclemag

Thank you for your subscription.

Subscribe to more FREE Online Magazines!

We think you might like...


fordmuscle
Classic Ford Performance
dragzine
Drag Racing
chevyhardcore
Classic Chevy Magazine

Street Muscle - The Ultimate Muscle Car Magazine

Thank you for your subscription.

Subscribe to more FREE Online Magazines!

We think you might like...

  • fordmuscle Classic Ford Performance
  • dragzine Drag Racing
  • chevyhardcore Classic Chevy Magazine

Street Muscle - The Ultimate Muscle Car Magazine

streetmusclemag

Thank you for your subscription.

Thank you for your subscription.

Street Muscle - The Ultimate Muscle Car Magazine

Thank you for your subscription.

Thank you for your subscription.

Loading