B18u intake valves
 

Looking to get a set of 4,new,same make valves for my 1996 460.

Planning on doing a head job in the near future whilst engine is being bored (1900cc muthatruckers!)

Have you pulled the head then?

Why not just use a 2.0 bottom end?

Afaik, they're the same bar the bore.

Ooh, really? I'll try and get a 2.0 then ;) not pulled the head yet, that will be done in a couple of weeks time. Sourcing parts atm hehe.

I think they are anyway.
A little more research probably required than my say so!

Don't forget though that with extra displacement, you'll need more fuel or it'll spend half it's life pinging, leaving you back to square one.

The 2.0 is a different block , the stroke is longer , the block is about 1/2 " taller . so cambelt is probably longer too .

Ah, my bad.

I always thought that the 1.7s were F2N based and the 1.8/2.0 both based on the F3R.
Must just be the 2.0 then.

Yup, just Wiki'd it.
The B18u and B20F both have the same bore, but different strokes.
Renault designation is F3P for the B18u and F3R for the B20F.

did Renault actually use the B20F version themselves?

Yes they did also use the B20F version.

Like you said the block is taller and also uses a longer belt. All the B18 bits will bolt on for swapping it over. I use the B20F in my 340 with all the B172K engine stuff fitted to it

i remember the B20F water pump is different .. How does the 300 go with a B20F ? in the 400 it always seemed almost vicious in it's big torque delivery .. I guess it will outperform a GLT .

Yes went very well. Very free revving with a 2.5" exhaust on it. I did have problems with it causing teh prop to slip back on the spines and never kicked the clutch knowing how weak the prop is.

I was very tempted when a formula Renault Engine came up on ebay. That would have been very interesting