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| | Forums66 Topics128,050 Posts1,055,754 Members48,426 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
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| | | Joined: Oct 2011 Posts: 42 'Bolter | | 'Bolter Joined: Oct 2011 Posts: 42 | My 1949 GMC is quickly looking like it will become a period correct fun street machine - a good running 270 with eye candy. Seeking your input on other considerations.
New dome top pistons – 10:1 same rods - ordered
Dual carb intake & dual period correct Zenith carbs – have it
6v Pertronix ignition - installed
Split headers – have it
Full flow oil system with screw-on oil filter
Timing cover trick
Performance cam – have it
Adv / Dur: 298 / 298
.050 Dur: 228 / 228
Cam Lift: .297 / .297
Valve Lift: .490 / .490
Centerline: 106 / 114
Mild porting to existing head (small port)
Rebuild head to original specs
Electric fuel pump? – your thoughts?
Overbore to get 292? – your thoughts?
Larger Exhaust Valves in stock head?
Drive train will remain stock.
Anything else I should do to warm up the engine?
Last edited by ShepFL; 07/20/2013 7:18 PM.
Be the person you would want as a friend because at the end of the game the King and Pawn go in the same box.
| | | | | Joined: Oct 2011 Posts: 42 'Bolter | | 'Bolter Joined: Oct 2011 Posts: 42 | Not sure why my details are not showing up.
Finally got it to post my typing.
Last edited by ShepFL; 07/20/2013 7:19 PM.
Be the person you would want as a friend because at the end of the game the King and Pawn go in the same box.
| | | | | Joined: Jun 2003 Posts: 565 'Bolter | | 'Bolter Joined: Jun 2003 Posts: 565 | Sounds good to me. Where did you get the carbs?
"Do not walk behind me, for I may not lead. Do not walk ahead of me, for I may not follow. Do not walk beside me either. Just leave me alone, you're starting to freak me out."
1957 GMC 150
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