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PINTO head question
caber - 6/7/18 at 07:28 PM

Folks

Just a thought, I have a 1600 Pinto with some issues. I also have a Pinto 2000 head complete in good nick. What would happen if i stick the 2000 head on the 1600 engine? I know the 2000 cam is a bit of an improvement and the head should breathe better, what are the do=wnsides with this idea?

Thanks in advance

Caber

JeffHs - 6/7/18 at 08:15 PM

Loss of compression ratio?

snapper - 6/7/18 at 09:18 PM

So much less compression.
2.0L Pinto has 48cc chambers 1.6 has 38cc
However the 2.0L cam in a 1.6 Head is a very cheap improvement

jollygreengiant - 6/7/18 at 10:21 PM

quote:
Originally posted by snapper
So much less compression.
2.0L Pinto has 48cc chambers 1.6 has 38cc
However the 2.0L cam in a 1.6 Head is a very cheap improvement

AND it whacks the compression ratio up, even better if you get the 2.0 valves fitted into it. The 1.6GT pinto head had 2.0 valves, porting and cam as standard. edit bit - I did this back in the 90's took the CR up to about 11:1

[Edited on 6/7/18 by jollygreengiant]

caber - 7/7/18 at 08:00 AM

Thanks for the info. So not a straight forward thing🙁 what is needed to put the 2litre valves in the 1600 head on the assumption I either have a valve problem or a cam problem? Is this a big machining job and does it require new hardened seats for unleadedness?
Thanks Caber

[Edited on 7/7/2018 by caber]

jollygreengiant - 7/7/18 at 09:14 AM

quote:
Originally posted by caber
Thanks for the info. So not a straight forward thing🙁 what is needed to put the 2litre valves in the 1600 head on the assumption I either have a valve problem or a cam problem? Is this a big machining job and does it require new hardened seats for unleadedness?
Thanks Caber

[Edited on 7/7/2018 by caber]


2.0 valves into a 1.6 (std head) will require new valve seats and porting (head off & while off inspect bottom end probably best to fit new bearings on crank while your at it). Unless you engine is a 1.6 Emax (longer block, 2.0 crankshaft with smaller diameter pistons and takes the SAME cambelt as a 2.0) in which case, a cam swap should be all you need. If you do a search on me then I think that this has been covered before by me .

Hope this helps to clear the muddy pinto waters a little.

mcerd1 - 7/7/18 at 11:17 AM

Can't think of a better time to fit hardened seats if you we're going to do loads of work anyway...

Btw if your thinking about any machining then I've got a couple of 2.0 blocks that you could have (but they'd need a full rework)

Dick - 7/7/18 at 11:38 AM

Skim the 2.0 head down

caber - 7/7/18 at 11:27 PM

How much would you need to take off is this practically possible?

Caber

Dick - 8/7/18 at 08:47 AM

You need to measure the CC of the head before you skim it. Never assume anything is as it should be .

mark chandler - 8/7/18 at 12:33 PM

You will be yanking off a lot of material so will have to add the cost of an adjustable cam wheel, not a bad thing anyway.

snapper - 8/7/18 at 01:59 PM

2.0L valves in 1.6 Head will need port throat under the valve set opening out or you’ll restrict flow and gain nothing.

Getting compression down if fitting 2.0L Head would need a mix of block decking, head skimming and gasket thickness.
By the time you have done all this fitting a 2.0L is cheaper

A 2.0l with injection head and Kent FR32 will give 130bhp plus

[Edited on 8/7/18 by snapper]

mcerd1 - 8/7/18 at 08:38 PM

quote:
Originally posted by snapper
Getting compression down if fitting 2.0L Head would need a mix of block decking, head skimming and gasket thickness.
By the time you have done all this fitting a 2.0L is cheaper


^^ what he said - if your even thinking about doing any of this then why stick with the 1.6