306 with 13:1 compression, few ?'s

1993SSP

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Sep 5, 2001

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Ky

Jul 22, 2008

#1

• Jul 22, 2008

• #1

i was talking to a guy today, his friend has a 306 engine, stock bottom end with re worked stock heads, he thought it had a stroker kit as well, he knew for sure it had 13:1 compression with a edlebrock intake and a brand new edlebrock 650 carb. It is fresh and has never been started. My question is what do you think it's worth and can I run this combo on pump gas?

 

5spd GT

"the 5.0 owns all"

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Aug 7, 2002

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Arkansas

Jul 22, 2008

#2

• Jul 22, 2008

• #2

13:1 will not work with pump gas. That is a good amount of bearing load with that compression. It is not a "200 k mile" engine.

I would make sure it is actually a 13:1 combination.

 

gcwh02

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Jun 20, 2005

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pottstown, PA

Jul 22, 2008

#3

• Jul 22, 2008

• #3

Not quite sure on how much it's worth..But it would be very very close if you want it on pump gas and your timing will have to be low and octane high. Mine is 12:1 and I even had my heads milled a little on top of that and I run on 93 octane with no sign of detonation. Keep us posted

 

1993SSP

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Jul 22, 2008

#4

• Jul 22, 2008

• #4

Ok, thanks, I was looking for something to run in a daily driver

 

Fast63

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Sep 20, 2007

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Jul 23, 2008

#5

• Jul 23, 2008

• #5

Not a daily driver engine.....

How can he be sure it's 13:1 when he doesn't even know if it's stroked or not?

 

ninety15.0

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Mar 10, 2004

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Jul 23, 2008

#6

• Jul 23, 2008

• #6

i was thinking that too...how does he even know. doesn;t sound like this guy knows what he's talking about. either way a 13:1 motor is a DD motor.

 

NIKwoaC

中國製造

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Oct 31, 2006

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Jul 23, 2008

#7

• Jul 23, 2008

• #7

13:1 is really high for a motor, especially with a stock bottom end. I had a friend with a 13:1 car and ran it on pump gas, it actually competed in HRM's Pump Gas Drags. Still, the car was a ticking time bomb and was always breaking parts/having tuning issues. 13:1 is just really hard to maintain on low octane.

 

hollywoodstang

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May 23, 2006

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Jul 24, 2008

#8

• Jul 24, 2008

• #8

13:1 ??? WTH?! DD. Simply no way

 

1993SSP

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Jul 24, 2008

#9

• Jul 24, 2008

• #9

hollywoodstang said:

13:1 ??? WTH?! DD. Simply no way

Click to expand...

I asked my friend today who is a experienced engine builder, that was basically the answer he gave me as well