Talk Morgan Forums Morgan Sports Cars Classic Morgans (pre-CX) Monty Takes A Deep Breath

Sump off, let's do this right and make sure Monty is overbuilt, rather than living on the bleeding edge of bottom end failure!



Standard 25,000-mile Ford silicon aluminium bearings out.



Slight scuffing, but nothing of particular concern given my enthusiastic use of Monty.



The Mahle Motorsport Tri-metal big end bearings have now been slipped in.



And all buttoned up with a set of ARP (ARPBE07) rod bolts that are specifically designed for use with the standard Ford rods that I'm reliably informed are a lot stronger than the internet will have you believe.



The rigid well supported and girdled bottom end of a Duratec is actually very robust if you use softer high-quality tri-metal bearings and secure the big ends with superior fasteners.

With the Mahle Motorsport Tri-metal big end bearings and ARP rod bolts in place, I'm confident we're building a bottom end that will deal with well over 250hp, with Monty's new horsepower output likely to land in the low 200's and with roughly 170 lb/ft of torque, we're actually building in a good margin of bottom end safety headspace.

Let's not spoil the ship for a hapeth of tar, and let's remain On-Brief!

Reliability, Drivability, Idle Quality, Safe Repeatable Performance... AND IN THAT ORDER