Change over date for vented A pillars on S4

[mazlot]

As per title, seeking information on when the A pillar trims went from non-vented to vented.

[rgh0]

I beleive all S4s haved the pillar vents. I beleive the change occured late in production of S3 in 1967 but dont know a more precise date.

cheers
Rohan

[elans3]

Correct about the change being on S3's, I've had a 1966 S3 "pre-airflow", and an early 1968 S3 with airflow, so sometime in 1967, can't say an exact date.

[Mazzini]

My April '67 S3 has airflow vents and a six bolt crank.

[trw99]

This is one of those questions it is impossible to be definitive about, as in many things historical with Lotus of the 1960s.

From my records Unit No 6843, invoiced in April 1967, is noted as the last car with the pre-airflow roof, which gives you an idea of when-abouts the change over likely occurred. We can be sure there may be later cars with pre-airflow, as well as earlier cars with airflow vents, as new moulds were introduced and old stock used up.

Tim

[smo17003]

Normal convention says that the A pillar is otherwise called the windscreen pillar, so is the OP referring to the nozzles that are in the A pillar (windscreen pillar) trims, or the extractor vents, which are in the B pillar?

My July '67 S3 FHC and my Nov. '68 S4 FHC have both.

[elans3]

I'm assuming that the OP is referring to the B pillar outlets.