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4 Piston

4Piston B-Series Ported Oil Pump

The stock oil pump is a great piece for up to 9,000 rpm in drag racing and 8,000 rpm in endurance...

The stock oil pump is a great piece for up to 9,000 rpm in drag racing and 8,000 rpm in endurance racing. Past that, there can be cavitation issues and oil pressure drops as temperatures rise. Our ported pump increases flow by 25% and will allow continuous use above 9,000 rpm. The pump has been tested as high as 12,000 rpm with great success. We start with a brand new OEM oil pump from Honda, disassemble, port and smooth oil passages to increase flow. The pumps are then cleaned, oiled, reasse...

$349.99

4Piston K20 / K24 Ported Type S Oil Pump

The stock K20 oil pump is a great piece for up to 9,000 rpm continuous duty. Past that, there can...

The stock K20 oil pump is a great piece for up to 9,000 rpm continuous duty. Past that, there can be cavitation issues. Our ported pump will allow continuous use above 9,000 rpm, and we have run the pump as high as 11,300 rpm with great success. We start with a brand new OEM oil pump from Honda, disassemble and port and notch for K24 fitment. The pump is then cleaned, oiled, and reassembled. FITS K20 and K24 Engines!

$325.00

4Piston H22 Ported Oil Pump

The stock oil pump is one of the weak links in your H22 engine. These pumps cavitate and lose pre...

The stock oil pump is one of the weak links in your H22 engine. These pumps cavitate and lose pressure at high rpm and especially when oil temperatures rise in endurance applications. Our ported pump increases flow and eliminates cavitation to resolve these shortcomings. We start with a brand new OEM oil pump from Honda, disassemble, port and smooth oil passages to increase flow. The pumps are then cleaned, oiled, reassembled and repackaged. This part is cheap insurance to protect your multi-...

$385.00

4Piston Valve Seal Installation Tool

The 4P valve seal installation tool allows simple and precise installation of your valve seals wi...

The 4P valve seal installation tool allows simple and precise installation of your valve seals without tearing or damaging the seal. You press them into place by hand and then lightly tap with a rubberized hammer.   Works with: Honda/Acura B,D,H,K,F-Series and Mitsubishi Evo 8 - X Available in BLACK and PURPLE MADE IN THE USA

(2 variants)

4Piston Valve Spring Height Micrometer

The 4Piston Valve Spring Micrometer is used between the seat base in the head and the retainer to...

The 4Piston Valve Spring Micrometer is used between the seat base in the head and the retainer to get a quick and accurate measurement of your valve spring installed height. This tool is sized so that it can be used in a variety of applications including the tight constraints of Honda B, H, and K series engines, as well as most overhead cam engines. These high quality tools have a fine thread pitch for great accuracy and are easy to use with convenient gripping surfaces. Measures 1.300" to 1....

(2 variants)

4Piston Piston Ring Squaring Tool

The 4P piston ring squaring tool is a quick and easy way to square your rings in the bore prior t...

The 4P piston ring squaring tool is a quick and easy way to square your rings in the bore prior to setting end gaps. It is easily adjustable from 2.000” to 5.000” and will clear head studs. This places rings 1.000” below the deck to get past head bolt distortion. No extra tools required Change bore sizes in seconds. Available in BLACK and PURPLE MADE IN THE USA

(2 variants)