NEED advice on an engine build....

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NEED advice on an engine build....

Post  racinghabbit on Sun Aug 26, 2018 9:42 pm

I have a 473bbf with dove heads and does not run on pump gas. on a chassis dyno it put 310hp to rear tires and 372 ft pounds of torque.. I want to make a pump gas motor... I Have 2 options and i want to know what you guys think is the best route....

Option 1 - take the lower end of the 473 and put edelbrock 95 cc aluminum heads on it.. with custom grind hyd flat tap cam.

Options 2 - I have a 69 block and crank i can offset grind to a 501 stroker with 6.700 h beam rods and srp154166 dish -28cc pistons and use my Dove heads on it with a custom grind cam also.

I plan on running this motor in a 1983 f100 daily driver , NOT racing at all ... so i really want the seat of your pants feeling... Whats going to get me there...
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Re: NEED advice on an engine build....

Post  dfree383 on Mon Aug 27, 2018 6:44 am

Do the aluminum head with a little porting IMO
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Re: NEED advice on an engine build....

Post  rmcomprandy on Mon Aug 27, 2018 7:55 am

racinghabbit wrote: I have a 473bbf with dove heads and does not run on pump gas.  on a chassis dyno it put 310hp to rear tires and 372 ft pounds of torque..   I want to make a pump gas motor...  I Have 2 options and i want to know what you guys think is the best route....

Option 1 -  take the lower end of the 473 and put edelbrock 95 cc aluminum heads on it.. with custom grind hyd flat tap cam.

Options 2 - I have a 69 block and crank i can offset grind to a 501 stroker with 6.700 h beam rods and srp154166 dish -28cc pistons and use my Dove heads on it with a custom grind cam also.

I plan on running this motor in a 1983 f100 daily driver , NOT racing at all ... so i really want the seat of your pants feeling...  Whats going to get me there...

if it really is entirely a street engine/vehicle, I would go for the more cubic inches.
Why not get the extra inches using different pistons and SCJ aluminum heads...?  
That will get you the most "bang for the buck".

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Re: NEED advice on an engine build....

Post  racinghabbit on Mon Aug 27, 2018 2:40 pm

I don't want to completely tear apart the motor I have. The short block is only 3 years old. so I want to go one way or the other.
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Re: NEED advice on an engine build....

Post  gt350hr on Mon Aug 27, 2018 3:08 pm

For the quick and dirty do the aluminum heads. Then as you can afford it , build the 501 with the dove heads , and sell or install it and sell the 473 to recover cash. Both engines could easily be sold. I am constantly building an engine for myself for an upcoming project. Every once in a while I get to keep one as they usually sell before I can use them myself. On those rare occasions where I do get to use one , the old one normally sells for more than the cost of new one despite being used.

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Re: NEED advice on an engine build....

Post  racinghabbit on Mon Aug 27, 2018 4:03 pm

what will have more torque?
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Re: NEED advice on an engine build....

Post  wickettoby1 on Mon Aug 27, 2018 4:09 pm

What is it that makes the current combo not run on pump gas?

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Re: NEED advice on an engine build....

Post  racinghabbit on Mon Aug 27, 2018 4:21 pm

11:7 to 1 compression ratio.....
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Re: NEED advice on an engine build....

Post  wickettoby1 on Mon Aug 27, 2018 4:27 pm

What about fly cutting the current pistons and getting a cam ground to reduce the dynamic compression?

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Re: NEED advice on an engine build....

Post  racinghabbit on Mon Aug 27, 2018 4:44 pm

current pistons are hyper and not worth fly cutting.. best left as a good short block.
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Re: NEED advice on an engine build....

Post  wickettoby1 on Mon Aug 27, 2018 4:58 pm

Fair enough

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Re: NEED advice on an engine build....

Post  racinghabbit on Mon Aug 27, 2018 9:58 pm

i myself thought the 501 with dove heads would make more torque....

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Re: NEED advice on an engine build....

Post  stanger68 on Mon Aug 27, 2018 10:28 pm

Either way I'd use a hydraulic roller cam. The top end swap would be less work, faster turn around time and probably cheaper. No trip to the machine shop.

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Re: NEED advice on an engine build....

Post  BBFTorino on Tue Aug 28, 2018 12:11 am

racinghabbit wrote:11:7 to 1 compression ratio.....
How about swapping on some thicker head gaskets??

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Re: NEED advice on an engine build....

Post  rmcomprandy on Tue Aug 28, 2018 8:09 am

BBFTorino wrote:
racinghabbit wrote:11:7 to 1 compression ratio.....
How about swapping on some thicker head gaskets??

Somebody must manufacturer a head gasket which is .150" thick and turn it into a detonation prone, open chamber, pump gas, engine ... right?

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Re: NEED advice on an engine build....

Post  racinghabbit on Tue Aug 28, 2018 8:25 am

NO NO NO to any thicker head gasket....

The whole point of my post was to hopefully get feedback on what street setup would give you more lowend torque for the sweet feeling in the seat of your pants...

I have several 460's.... built in several configurations.... most are not streetable.

My 83 f100 I currently have a bone stock 460...

COST is the same if I build a 501 and use my already done up dove heads or buy heads for my 473 complete lowerend.

I do not what to build a complete motor and spend 5k... I want to spend $2500 and have it all done....
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Re: NEED advice on an engine build....

Post  rmcomprandy on Tue Aug 28, 2018 5:16 pm

racinghabbit wrote:NO NO NO to any thicker head gasket....

The whole point of my post was to hopefully get feedback on what street setup would give you more lowend torque for the sweet feeling in the seat of your pants...

I have several 460's.... built in several configurations.... most are not streetable.

My 83 f100 I currently have a bone stock 460...  

COST is the same if I build a 501 and use my already done up dove heads or buy heads for my 473 complete lowerend.

I do not what to build a complete motor and spend 5k... I want to spend $2500 and have it all done....

More cubic inches with a smaller, higher velocity port head, (like a big valve D0VE), will easily provide more torque at lower engine speeds.  Especially with a closed exhaust system.

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