TorinoSpeed

So here's what i looks like my build is going to be

1970 2V Cleveland block
9.6:1 compression
74' casting (M) 2v heads 2.04/1.65
224/224 .470/.470 110lsa cam
Edelbrock Performer Intake
Holley 670 cfm, vac secondaries
Hooker Supercomps 1 5/8in primaries, 3in collector
dual 2in exhaust with glasspacks
Hurst 4 speed, 11in clutch
trac-loc 3.25 gears

This is going into a weekend driver 73 Torino, what do you guys think?

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73' Q Code Gran Torino
Hurst 4 speed
351 Cleveland
9"
No A/C, Bench Seat, Crank windows, Just the way I like it.

George1861

What dou you mean "M" head?

TorinoSpeed

A modified head. 75ish cc chamber with similar valve sizes to the cleveland 2v head. So its essentially a 70 casting 2v long block with a bigger cam.

__________________
73' Q Code Gran Torino
Hurst 4 speed
351 Cleveland
9"
No A/C, Bench Seat, Crank windows, Just the way I like it.

George1861

those M heads usually aren't used, reportedly poor exhaust side. Try to find some real C heads.

smr

Are in us? I have set of US 2V Cleveland heads for sale...They have about 6500 miles on them sense rebuild and have been sitting for some time (maybe 4 years) so possibly a good valve job and new seals and good to go. These woudl probably be better for the setup then modified heads. PM me if interested...

TorinoSpeed

Can someone elaborate on the difference and advantages of the two different 2v setups?

Not necessarily building an 8000 rpm king for flat out horsepower, because i would get a set of 4v heads to do that.

All i want to do is build a stong torquey motor to make driving the car fun. Which heads would I benefit from?

__________________
73' Q Code Gran Torino
Hurst 4 speed
351 Cleveland
9"
No A/C, Bench Seat, Crank windows, Just the way I like it.

George1861

If I remember right the C has a smaller combustion chamber & better exhaust than the 351M/400 heads. The 351M/400 is always hobbled by the smog era use. All the experts don't like the heads. The only exception was an article on making a fake BOSS 302. The 351m/400 heads create streetable comp. ratio & the smaller ports help on a 302 size engine vs using US "C" heads. I don't notice any problems running my 302Cs.

TorinoSpeed

The cleveland and modified combustion chamber is within 1cc, harldy worth much difference in compression.

__________________
73' Q Code Gran Torino
Hurst 4 speed
351 Cleveland
9"
No A/C, Bench Seat, Crank windows, Just the way I like it.

xyfmtjoe

The 2v'M' heads have a large restriction around the exhaust valve guide.

This was there to facilatate a water jacket there to lessen guide wear and other than a stock build should be avoided at all costs

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Ford mad and proud of it 71xyfmt, 96ef xr8, 82xe 's'pac 400k old workbus!

xyfmtjoe

You can see what I mean by looking at the bottom left pic on this link

Kelly hotrod - 351C motor, page 2

__________________
Ford mad and proud of it 71xyfmt, 96ef xr8, 82xe 's'pac 400k old workbus!