webber carb manifold info

[Gibbo]

Hello hi have just got some twin webbers.but the inlet manifold are round and my head is square,will this make any difference to the performance?

[Stuart]

Yep, big impact on the gains you get.

sell the manifold and buy the right one. Or better yet get a round port head for even better gains

[turbojolt]

Ive got a 1300sr head for sale :)

[Stuart]

Ive got a 1300sr head for sale :)
Which isn't round port :p

[philip]

Vinny on here has a square port inlet as its on the 40s in my workshop at moment and surplus. I can ask him how much hes after?

[Gibbo]

How much for head.

yes Philip.

[Gibbo]

What would be the best head to get.? The engine is 1.4nv

[dgbnova#1]

The inlet of vinny will be fine on ures its the change from square to round or the other way in ure case that's the problem but not much different if ure not adding or doing engine mods also imo.
I drove vinnys sr with the carbs on that manifold felt great so unless ure gona swop head, do mods, service, cambelt etc just get the manifold of him and off u go, depending on price I'd have the round port of you so if you want let me know and will cost nothing as I'd just pay vinny

[Gibbo]

Think im going to get a round port head.it will have a cam unsure what cam at the minute.

[dgbnova#1]

Be interested to know what power gains ure gona get from swopping compared to the money ure gona spend as apart from being new head gasket the rest can be changed without doing a head swop and what is the gain 2bhp over the square port anyone?

[matthew172]

I have a unskimmed 1.6 se cylinder head for sale that is round port, been sat in my garage for some years £60 inc postage

[Adam]

Swapping to a round port head on a 1400 gives about 8-10hp

[Gibbo]

Will pm you Matthew if i cant get this 1.2 head.i been looking at a 1.2 head people say its better for gas flow?.

[Gibbo]

Swapping to a round port head on a 1400 gives about 8-10hp

sounds good

[BRoadGhost]

The way an inlet flows isn't just about peak power.