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Which Cylinder Head?
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DANIEL
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- Whats your location?: Abbeyfeale Co limerick
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- What Minis have you?: 1275 mpi sportspack 1999
1969 riley elf - Location: West Limerick
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Which Cylinder Head?
I sent my 1275 block to the engineering works today to have it bored out for 73.5mm pistons. Can anyone tell me which is the best cylinder head to use? I dont want to spend a fortune ordering one from mini spares. I think what I'm looking for is a metro head.
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The Marcos Graveyard
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- Whats your location?: Longford
- Region: Eastern
- What Minis have you?: 1971 Mini Marcos.
1984 Mini Sprite - Modifications: 1380cc
Weber45
S/C CR gearbox and drop gears - Location: Longford
- Contact:
Re: Which Cylinder Head?
What compression were you going to run ?
A fully carbon fiber Mini Marcos shell weighs just 7.25kg.
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DANIEL
- IMOC Paid Member
- Posts: 57
- Joined: Tue Jun 05, 2012 5:50 pm
- Whats your location?: Abbeyfeale Co limerick
- Region: Southern
- What Minis have you?: 1275 mpi sportspack 1999
1969 riley elf - Location: West Limerick
- Contact:
Re: Which Cylinder Head?
Dont know what compression i need. Just want to build a fast engine for road use
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BERT
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81' clubby estate - Location: Greystones,co Wicklow
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Re: Which Cylinder Head?
What cc pistons did you get?
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DANIEL
- IMOC Paid Member
- Posts: 57
- Joined: Tue Jun 05, 2012 5:50 pm
- Whats your location?: Abbeyfeale Co limerick
- Region: Southern
- What Minis have you?: 1275 mpi sportspack 1999
1969 riley elf - Location: West Limerick
- Contact:
Re: Which Cylinder Head?
Didn't get pistons yet. Hoping to bring it up to 1380cc. Guy in the engineering works is checking out pistons for me.
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The Marcos Graveyard
- IMOC Paid Member
- Posts: 4718
- Joined: Fri Feb 04, 2005 10:05 am
- Whats your location?: Longford
- Region: Eastern
- What Minis have you?: 1971 Mini Marcos.
1984 Mini Sprite - Modifications: 1380cc
Weber45
S/C CR gearbox and drop gears - Location: Longford
- Contact:
Re: Which Cylinder Head?
You need to do a bit of homework, it's not just a matter of throwing a few bits together.
A fully carbon fiber Mini Marcos shell weighs just 7.25kg.
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coolmini
- IMOC Paid Member
- Posts: 241
- Joined: Mon Nov 07, 2011 9:45 pm
- Whats your location?: Claremorris
Mayo - Region: Western
- What Minis have you?: none right now
- Modifications: sold that one, looking for a new project
- Location: Mayo
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Re: Which Cylinder Head?
Hi all that depends on what you want out if it.
Do you want it to be used everyday / easy to drive or outright power high up the rev range.
Be warned if you built a screamer you won't like it when you won't get power below 4000 rpm.
Some suggestions.
Do your own head following the yellow bible. This can be done on a budget.
Or pay loads of money for a new head done by the likes of minispares.
Their heads come from Keith calver who has his own website too.
No harm in having a chat with him.
He also supplies nice cams. I used the re13ot with great results.
The sw5 cam from swift used to be a good cam too but tends to wear fast these days.
What kind of power are you looking for and what kind of driving will you be doing that's the main question you should be asking yourself.
Aim for good torque from early in the rev range. You won't regret it that way.
By the way I am selling a 2nd hand head already modified.
Do you want it to be used everyday / easy to drive or outright power high up the rev range.
Be warned if you built a screamer you won't like it when you won't get power below 4000 rpm.
Some suggestions.
Do your own head following the yellow bible. This can be done on a budget.
Or pay loads of money for a new head done by the likes of minispares.
Their heads come from Keith calver who has his own website too.
No harm in having a chat with him.
He also supplies nice cams. I used the re13ot with great results.
The sw5 cam from swift used to be a good cam too but tends to wear fast these days.
What kind of power are you looking for and what kind of driving will you be doing that's the main question you should be asking yourself.
Aim for good torque from early in the rev range. You won't regret it that way.
By the way I am selling a 2nd hand head already modified.
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Billy
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Re: Which Cylinder Head?
Dan,
Was the block rebored before to 1293, 1310 etc? Once you wear out a 1380, that's it.
Billy
Was the block rebored before to 1293, 1310 etc? Once you wear out a 1380, that's it.
Billy
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DANIEL
- IMOC Paid Member
- Posts: 57
- Joined: Tue Jun 05, 2012 5:50 pm
- Whats your location?: Abbeyfeale Co limerick
- Region: Southern
- What Minis have you?: 1275 mpi sportspack 1999
1969 riley elf - Location: West Limerick
- Contact:
Re: Which Cylinder Head?
Bill
Went for 73.5mm pistons so that will be 1380. I have been told that with a kent 266 cam it should be a nice fast road engine.
Went for 73.5mm pistons so that will be 1380. I have been told that with a kent 266 cam it should be a nice fast road engine.
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The Marcos Graveyard
- IMOC Paid Member
- Posts: 4718
- Joined: Fri Feb 04, 2005 10:05 am
- Whats your location?: Longford
- Region: Eastern
- What Minis have you?: 1971 Mini Marcos.
1984 Mini Sprite - Modifications: 1380cc
Weber45
S/C CR gearbox and drop gears - Location: Longford
- Contact:
Re: Which Cylinder Head?
I always thought the 266 was a mild road cam.
A fully carbon fiber Mini Marcos shell weighs just 7.25kg.
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coolmini
- IMOC Paid Member
- Posts: 241
- Joined: Mon Nov 07, 2011 9:45 pm
- Whats your location?: Claremorris
Mayo - Region: Western
- What Minis have you?: none right now
- Modifications: sold that one, looking for a new project
- Location: Mayo
- Contact:
Re: Which Cylinder Head?
Md 266 is an old profile at this stage.
Much nicer cams available these days.
Much nicer cams available these days.
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