Hopping up a Chevy 250 6 cyl.

['68OrangeSunshine]

Originally Posted by l1n1b1

One question: I see most everyone paints their motors Chevy orange. Is this the correct color for a '67 250?

Bryan

Yes, all L6s were Chevy Engine Orange from '67 thru '72 (at least). For the '63 model year [first year for the L-22 series of L6s --194-230-250-292] the smaller engines were GM Blue and the 292 was Alpine Green. This was a carryover from the earlier L6 series 235-261s. They used the same block casting so they painted 235s blue and 261s green so they could tell at a glance what engine it was. I'm not sure how long this went on, but by '67 GM decided to use one color of paint on Chevy L6s and SBC V8s. [BBCs might have been a redder orange.] In the mid '70s, Chevy went back to blue, but a lighter shade on all engines.

[sixpac]

1966 was the first year for the 250 in the C10 pickups. It was a bluish green. After that it was orange.

[N2TRUX]

Here's a few more progress pics from n2billets 250 build up. Here's the exhaust manifold after a few evenings of grinding.

There are a lot more pics and details here- "Extreme Makeover"

[N2TRUX]

The intake manifold got cleaned up and a fresh coat of paint....

[N2TRUX]

It's really taking shape now. Everything is mocked up and it's time to build the exhaust...

[jgrh64]

[QUOTE=l1n1b1]Has anyone done this? What kind of cam did you use? What type head work? Intake & carbeuration? Headers?
....

Use a 194 cyl head to up the compression, 307 chevy forged pistons work well- clifford intake for high RPM, offenhauser intake for torque, around a 390 cfm 4 bbl will work good. split headers w/smaller pipes for performance.

[N2TRUX]

Lots of updates have been added. Take a look here-n2billet's project 68 "Extreme Makeover" hot rod style