Goods and Bads of a 351 lightning stroked out - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 12 Old 09-02-2011, 10:36 AM Thread Starter
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Goods and Bads of a 351 lightning stroked out

I am looking at purchasing a 93 mustang with the following motor:

Motor is a 95 lightning block
Eagle 408 stroker kit 60 over 414 cubes
Bullet custom grind nitrous cam
Edelbrock Vic jr. Heads
1.7 rr
All arp hardware
Trickflow r series upper lower



I know nothing about the 351 blocks, I know the stock 302s graveyard zone is 500-600rwhp. What about these? What is the known power limit of these blocks. is 60 over (414CI) pushing it on this block or is it fine. I believe its designed for nitrious right now 10:1 compression.

Could this be a boost friendly motor if the compression was brought down to 8:5?


What are realistic power numbers to the wheels for a combo like this?


93 Cobra #738 Black/Grey BOSS 347(352ci), PT7675CEA, FB AOD, F.A.S.T, #160, E85/70

Built @ Kurgan Motorsports. 820rwhp @ 22 psi.
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post #2 of 12 Old 09-02-2011, 11:28 AM
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700-900 depending on the power adder and 8.5:1 is way to low


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post #3 of 12 Old 09-08-2011, 01:47 PM
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10to1 is good for boost just not as much boost as say 9to1. look at the 2011 5.0 it's 11to1 and everybody makes a supercharger kit for it...

95 Mustang 351 MM PHB/TA MM2 rear shocks and coilovers
17x10.5 sqaure
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post #4 of 12 Old 09-08-2011, 07:55 PM
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10to1 is good for boost just not as much boost as say 9to1. look at the 2011 5.0 it's 11to1 and everybody makes a supercharger kit for it...
Do they have variable valve timing? Good luck with 11:1 on an antique pushrod engine.

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post #5 of 12 Old 09-09-2011, 12:30 AM
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Yeah but don't see why it would be a problem. Look at a vette close to 12to1 and supercharger kits are made for those too.... Now sure you can't run 15PSI on it but then again you don't have to with that much compression, 8ish PSI with 10to1 would be easily doable.

95 Mustang 351 MM PHB/TA MM2 rear shocks and coilovers
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post #6 of 12 Old 09-09-2011, 09:30 PM
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Yeah but don't see why it would be a problem. Look at a vette close to 12to1 and supercharger kits are made for those too.... Now sure you can't run 15PSI on it but then again you don't have to with that much compression, 8ish PSI with 10to1 would be easily doable.
Your not taking into account human error on a non variable valve timing engine like a 302-351 which has technology from the fred flintstone era.

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post #7 of 12 Old 09-10-2011, 12:38 AM
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Yeah or the fred flinstone's working on it... Oh yeah it would have to be a safe tune that's for sure, but then again all tunes should be on the safe side...

95 Mustang 351 MM PHB/TA MM2 rear shocks and coilovers
17x10.5 sqaure
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post #8 of 12 Old 09-22-2011, 01:07 AM
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2 words - dynamic compression.

With the right cam 10lbs will work and work well.
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post #9 of 12 Old 10-01-2011, 10:40 PM
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11:1 on an antique pushrod engine is not to much on a 351 based engine.
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post #10 of 12 Old 10-01-2011, 10:43 PM
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Even with VVT you can blow the motor by human error. That 414 motor above should make 550HP pretty easy and be a daily driver.

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post #11 of 12 Old 04-29-2012, 01:24 PM
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Lol ya guys crack me up who think 11:1:1 compression is insane. I ran 11:1:1 compression on my stock block 331 stroker, I ran 15lbs of boost at just over 700 to tires... Block never cracked. Then again people who usaully blow their junk up cant tune. My new setup is goin to be 13:1:1 compression with turbo and e85.
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post #12 of 12 Old 05-03-2012, 04:39 AM
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I know of a couple all out race cars with big dollar builds that run 10:1 and plenty of boost...But they are all rocking race blocks, big dollar trick flow or blue thunder heads, jesel rockers, etc...

The .060 over is what would concern me the most...If you ever score the cylinder your block is toast as it cannot be bored over anymore. Plus, what would warrant boring it over that much?

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