16v head on 20v block

[Hen may possibly be a nut]

I tend to agree with Sprinter86.

If you had a running smallport but had done the bottom end and could get a 20V bottom end for cheap/free then it could be worth it. But not if it's just because they're the bits you can find easily.

Hen

[worked]

could possibly be worth looking into tho, alot of people argue the 16v heads flow more when worked (i'm not by the way, just bringing up other people thoughts), then the cost of cams comes into play, distributor location, ect.
for an N/A bus could it possibly be worth it??
dimitri is right that it just wouldn't be a free spinning motor anymore.
all this is questioning, not speculating, before someone pipes up an says they are gunna smash my dog for what i've said.

[slydar]

not really.

they have about the same potential. depending on who you are/who you know, one or the other might be easier/harder to get to your specific goal.

from what ive seen, it doesnt seem any of the heads are a lot better than the others.

theres nothing really wrong with the suggested set up.

if you had a running 16v 4age powered car, and broke your engine. its possible this set up would be a good idea.

most small ports are quite worn out. lots of 20vs are low k.. and the small port is the better 16v head for most applications.

[egg_83]

my mate has a smallport at his house and the bottom end is stuffed. And i saw a cheap 20v bottom end(alot cheaper than rebuilding 16v) so this is why i ask

[hicomp4ag]

I've done tried it. Small port head on a BT bottom end. It didn't work for me. My set up was complete BT bottom end, .8mm TRD head gasket, HKS 288/288 cams. And... when I turned the motor over by hand, I got about 6 degrees of rotation before the Valves hit the Pistons.

Some people state side said they got it to work, and I've talked with a few of them, basically, they run stock head gasket, no milling of the head, and stock cams. In there case the Valves didnt hit the pistons.

But to be safe, if you are hell bent on doing it, you should cut the Valve recess' cut in. Personally, I dont think it would hard to do it, but at the same time, the 92 hicomp pistons will do.

[Sam-Q]

that doesnt surprise me that much as the blacktop pistons have a fairly high dome on them. I would take an educated guess and say it might be quite a different story for a silvertop piston, what do you think?

[3s-86]

No mate

Silver top pistons have domes on top aswell
Really he can get it to work he just needs to recut
the inlet valve reliefs as they are cut more inward to
the centre of the pistons then it might work.
But then he says he's trying to keep it a low budget.

So yeah!

[lo_rolla]

I'm using a silvertop crank and block with Big Port head.
But I got H-Beams and 16V Forgies.

My question, on this subject is regards the water pump - whats the go there? Any thing else I should know about using this block in a RWD?

[Sam-Q]

with or without an external thermostat

[AE86R]

can u put a 20v head on a 16 block