Engine Block Adaptor Bottom Entry Sizes:TD1013 This Impeller is classified as

This Impeller is classified as a large tapered neovane impeller and has 8 splines and measures 77mm at the wide base & 64mm at the top of the splines

310mm height x 190mm deep

Length overall -154mm

these are  3/8 unc into head reduced to 5/16  manifold studs while port alignment with cylinder heads is the same the clearance for a larger stud and nut makes them difficult to fit

Mount Tab Notches Center to Center:7"

Engine Block Adaptor Bottom Entry Sizes:TD1013 This Impeller is classified asTransdapt block adaptors replace of your oil filter when you are relocating it. They are available in cast or billet alloy in a range of thread o ring sizes to suit most engines. Part Number Material Filter Thread In Out Thread O Ring I. D O Ring O. D Some Applications TD1013 Cast Alloy 3 4" 16 1 2" NPT 62. 50mm 69. 20mm Ford, Chrysler, Imports TD1013B Billet Alloy 3 4" 16 1 2" NPT 62. 50mm 69. 20mm Ford, Chrysler, Imports TD1014B Billet Alloy 3 4" 16