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Author Topic:   ENGINE SIZE OPINIONS
ERIC6659
Dirt Roller

Total posts: 9
posted January 10, 2005 12:11 PM  
LOOKING FOR SOME INPUT GUYS. I AM NEW TO THE FORUM, AND IN THE PROCESS OF BUILDING A STREET STOCK FOR MY LOCAL 3/8 MILE DIRT TRACK. I HAVE A FEW OTIONS TO STAY WITHIN THE RULES. FIRST OPTION IS A FLAT TOP 355 WITH SOLID FLAT TAPPET CAM, VORTEC HEADS, AND VICTOR JR INTAKE W/ 750 HOLLEY. OTHER OPTIONS ARE 383 OR 406 WITH FLAT TOP PISTON, HYDRAULIC CAM AND CAST IRON INTAKE WITH 750 HOLLEY. TRYING TO DECIDE THE INTAKE FLOW AND SOLID CAM DESIGN IS A BIG ENOUGH ADVANTAGE TO THE SMALL ENGINE, OR GO FOR THE BIG CUBES. I HAVE PARTS FOR ANY COMBINATION. ANY INPUT FROM THE STOCK GUYS WOULD BE GREAT!!

leapinlizard
Dirt Freak

Total posts: 402
posted January 10, 2005 12:32 PM  
What's the gear?

ERIC6659
Dirt Roller

Total posts: 9
posted January 10, 2005 12:38 PM  
I can use any gear ratio

leapinlizard
Dirt Freak

Total posts: 402
posted January 10, 2005 01:41 PM  
If your on a tight budget i would use the torque of a bigger engine and less gear. You won't have to turn as fast increasing longetivity. IF you have a sizable budget I would run a smaller engine and more gear so it's easier to drive.

BrianW
Dirt Freak

Total posts: 385
posted January 10, 2005 09:35 PM  
Can you use the bowtie cast iron intake or the marine/GMPP vortec cast iron intake? If so I'd build the 406 with 5.7 'stock' rods and flat-tops with as small of a valve relief as you can get, then top it with vortec heads milled for more compression - with a heavy stock car you'll want the torque to accelerate it out of the corner and the cubes will help that...

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