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Author Topic: Spinning a 351w to 7000rpm. All iron engine  (Read 3358 times)
tbirdtess
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« on: July 18, 2016, 06:43:29 pm »

Hello

How long will a basically stock 80's 351w engine if i'm hitting 7000rpm?

All iron engine, 2bbl carb, auto trany.
using a low lift oval cam. .450 lift, 297duration.

tbirdtess
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347HO
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I believe they landed on the moon.


« Reply #1 on: July 18, 2016, 11:48:03 pm »

The obvious question is;  what rpm did you build it for?
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... it was REALLY revving at like 4K...
If I saw that thing in my rear view Im pulling over to let you by, I be scared of that thing Huh? i dont know wich car is uglier ur or mine?
Javier
Ugly?  Easy now -- that's my baby and it's got lots of unique character!  When I drop that built 445" stroker in it you won't have any time to "pull over to let me pass" because I'll have already blown past you when you figure out what the hell was that loud noise behind you . . .  
tbirdtess
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« Reply #2 on: July 19, 2016, 04:27:46 pm »

Hello

I'm pulling a 3500lb car around an 1/2mile asphalt oval.
Last raced I was getting about 6100rpm back stretch & 6200rpm front stretch.

This is with about 5.69 rear ratio.

Was thinking going to 6.04 ratio & a longer duration cam.

I may never hit 7000, But will the engine hold up?!
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z-adamson
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« Reply #3 on: July 19, 2016, 04:43:37 pm »

Hello

I'm pulling a 3500lb car around an 1/2mile asphalt oval.
Last raced I was getting about 6100rpm back stretch & 6200rpm front stretch.

This is with about 5.69 rear ratio.

Was thinking going to 6.04 ratio & a longer duration cam.

I may never hit 7000, But will the engine hold up?!

Cap walk could become a problem at that rpm.

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juiced coupe
Six figures worth of don't give a f*ck
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« Reply #4 on: July 19, 2016, 04:44:55 pm »

What does "basically stock" mean?

Junkyard stock? Probably not long.

Stock rebuild spec? Might live but I probably still wouldn't do it.

Performance build with mostly stock parts? Proper machine work, increased bearing clearances, and ARP fastners? This is the minimum that I'd consider.
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Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
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