Building a period-correct FWA engine | Project Elva sports racer

Photography by Tim Suddard

Our instructions for this engine rebuild were simple: We wanted a period-correct FWA engine for our Elva so we could rewind the clock to Sebring in 1962, back when our car was entered by the factory. This would also help the car’s acceptance to events like Goodwood.

We also wanted an engine that would be docile and easy to use–not a ticking time bomb. Since the car needs to be street legal by FIA rules of the period, we had fantasies of running it down to a local cars and coffee. Plus, not building the engine to the razor’s edge would help keep costs in line.

Ted Wentz modifies our five-bearing cam carrier to fit our Elva‘s head.

Our FWA head is complete with new valves, valve springs, and intake and exhaust valves that have been optimized for legal competition use.

We had to build a plate to block off the original mechanical fuel pump, as we planned to use an electric fuel pump.

This is our nearly finished engine. Note the conventional distributor, twin Weber DCOE 40 carbs and the way the oil pan allows the engine to be canted over 100-degrees to the left in the chassis. We used ARP fasteners in all critical areas.

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Comments
sir_mike
sir_mike Reader
5/9/22 5:19 p.m.

They are a work of art.

Panamericano
Panamericano New Reader
5/10/22 12:15 p.m.

The carbs look bigger than the engine.  Nice.  What does it weigh?  I'm sure we all want to know.  Going to a dyno?

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