S1 engine mounts - what size are originals? same as S3?

S1 engine mounts - what size are originals? same as S3?

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larrylamb11

Original Poster:

585 posts

251 months

Tuesday 13th November 2018
quotequote all
Descending further down the rabbit hole of a 'quick' S1 recommission (turns out these things are never quick!), I find myself casting a suspicious eye over a pair of potentially squidgy looking engine mountings.....
I've read a number of threads on how much of a pig to change these are, so only want to attempt this job once ideally! Consequently I am not overly keen to try and fit standard replacement Ford parts given the number of other people who have done just that and found them collapsed again within a couple of years.
I am struggling to ascertain how big the mountings actually were originally.... whether they were 1½" or 2" and I can't measure the ones that are on there as they have sagged, so I am not sure which mounts to order as replacement......
I see a lot of threads recommending the Rally Design RD410 mounts at 50mm and the 'NEW Alternative Parts list' spreadsheet recommends the Burton Power 52mm FP292 mounts. I have also found THESE 44mm Polyurethane mounts on eBay, listed as fitting the S3 - but will they also fit the S1?
I am sorely tempted by the Poly mounts as they are even less likely to deteriorate and require replacement than the other ones, but I could really use the sage guidance of those who have experience of this, please.....
What is the current consensus on the best mounts to fit to the S1?

Edited by larrylamb11 on Tuesday 13th November 15:53

larrylamb11

Original Poster:

585 posts

251 months

Tuesday 13th November 2018
quotequote all
Ah, thanks for that - link fixed.

Yes, those are essentially the ones I was looking at. It does seem logical to me that all the V6 engines used the same mounts... but this is a TVR, so you just never know! If I can get some figures on how big the original mounts are supposed to be, I can make a call on whether the ones on eBay would be suitable or whether I am better going for the Rally Designs ones.

larrylamb11

Original Poster:

585 posts

251 months

Tuesday 13th November 2018
quotequote all
Ok, thanks for the comments. Seems it's still a bit of a lottery with the aftermarket bits then.....
The eBay ones are 44mm, so 1¾" - does it seem likely they are thick enough to prevent anti roll bar / sump interference? Given what I have learnt so far I am leaning towards a pair of the Polyurethane mounts in black as a (hopefully) long term fit and forget solution., avoiding rubber ones altogether.