545 ported doves 675hp at 5700 707tq at 4400

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545 ported doves 675hp at 5700 707tq at 4400

Post  ironhead71 on May 3rd 2017, 10:34 pm

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Re: 545 ported doves 675hp at 5700 707tq at 4400

Post  DanE on May 4th 2017, 9:02 am

Congratulations!

Do you have the flow numbers of the heads? What size valves?
What compression?

With an intake/exhaust ratio of somewhere around .6, it would seem like you would want a camshaft with a large split between the intake duration and exhaust duration so as to let the cylinder "blow down" at higher RPMs. I believe that camshaft left power on the table. More carb! Very Happy

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Re: 545 ported doves 675hp at 5700 707tq at 4400

Post  ironhead71 on May 4th 2017, 6:14 pm

no flo #s home port ex bumps out victor match int 13.8 comp 2.19 1.76 fierra valves i did the block oil mods and engine assembly 2 dowel pin cam gear upgraded to 1/2 in retaining bolt no elect water pump alternater also turning manual fuel pump had 5 1/2 lbs stock dist had 1150 dom max was 658hp 687 tq the 950 stomped it i wanted stock valve covers but wouldt clear girdles they was laughing at it when i got to there shop mudd falling off some of the used parts from last year 1.78 headers that's what we had at the time

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Re: 545 ported doves 675hp at 5700 707tq at 4400

Post  The Mad Porter on May 6th 2017, 10:03 pm

Good numbers especially for a single pattern cam. The early peak given the duration suggests a lack of intake port imo.

Do a 270 / 290 split and you will not only find HP but extend your usable RPM range.



S
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Re: 545 ported doves 675hp at 5700 707tq at 4400

Post  ironhead71 on May 7th 2017, 12:19 am

thanks for the info im open to suggestions working on another one now and can post pics of ports and will have victor intake on it u talking a custom cam or off the shelf

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Re: 545 ported doves 675hp at 5700 707tq at 4400

Post  DanE on May 7th 2017, 6:57 am

Custom! Not an off the shelf "Chevy" grind for your Ford. Your Ford has different requirements.

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Re: 545 ported doves 675hp at 5700 707tq at 4400

Post  Coupe Devil on May 8th 2017, 10:53 pm

Very nice. I wonder how much the port job is worth over a set of stock runner heads? Just out of curiosity.
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Re: 545 ported doves 675hp at 5700 707tq at 4400

Post  Straubtech on May 9th 2017, 5:25 pm

At 13.8 to 1 I think there is more in it but would need to to know the flow numbers.

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