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-   -   Upgrading a 260hp 350 (https://www.offshoreonly.com/forums/restorations-upgrades/319428-upgrading-260hp-350-a.html)

Jonesyfxr 10-23-2014 02:05 PM

Found this......

http://www.chevrolet.com/content/dam...e-12499529.pdf

Still looking....

Jonesyfxr 10-23-2014 02:07 PM

I can pick up a set of Vortec heads just a tad more money than the 217 heads. I still would need an intake anyways. Maybe that's the best way to go.

Mr Maine 10-23-2014 02:13 PM

Heads:
http://www.summitracing.com/parts/nal-12558060

Marine intake (not really needed for fresh water, more pricey):
http://www.summitracing.com/parts/edl-2516

Non marine, okay for fresh:
http://www.summitracing.com/parts/edl-7516

http://www.summitracing.com/parts/edl-7116

For the cam, go roller if you can as you should have a roller block. The flat tappet you list would be okay, but not as good as a roller setup.

donzi matt 10-23-2014 02:21 PM

I wouldn't bother with those heads. They suck.

Jonesyfxr 10-23-2014 02:39 PM

^^ I'm now leaning toward the Vortec heads. ^^

Now thinking clearly without a migraine, I would still have to buy an intake, so the money paid out would be similar.

Would the 262H cam be ok with Vortec heads?

silomon 10-23-2014 04:07 PM


Originally Posted by donzi matt (Post 4208004)
I wouldn't bother with those heads. They suck.

Why?
Which are better in this price range?

SB 10-23-2014 04:15 PM


Originally Posted by Jonesyfxr (Post 4207995)


Pass.

I have hands on experience with that motor and it's the biggest dog known to mankind. Whoever in GMPP stuck that hunk of schit camshaft in that engine should get one up his azz.

A 260hp motor will run better. Way better !

That cam was designed for high compression engines back in the 60's. Lots of seat duration. It wasn't even that good for those motors back then.

Totally assinine.

A 300hp 5.7 motor can be almost built by mistake and run so much better then that hunk of crap 290hp/5.7.

Jonesyfxr 10-23-2014 07:18 PM

SB....so what do you recommend?

I've just been researching and trying to see what I can find.

SB 10-23-2014 07:32 PM

Do you have a base motor to work with ? Or need to buy an engine ?

Are you looking for 300hp ? Or something else.

To be honest, I've been involved with some real brain draining diagnostics at work past few weeks, that I'm done with, so I'm in brainless cruise control right now............so I'm not quite sure what exactly you are up to.

Jonesyfxr 10-23-2014 08:03 PM

I have a good running 260hp 350 right now. I have a pan leak, so the engine is coming out.....so why not upgrade??


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