re:505 to 555

Old 12-04-2007, 09:05 AM
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donovan427
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HI ALL, I AM LOOKING FOR A BBC STREET MOTOR WITH AROUND 700HP AND AROUND A .700 LIFT CAM USED OR NEW WITH 505 TO 555 CU.IN. THANK YOU, Don ( possibly the right 496)
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Old 12-04-2007, 10:10 AM
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blue66
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You have a pm.
Brian
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Old 12-04-2007, 04:46 PM
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donovan427
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Originally Posted by blue66
You have a pm. Hi Brian, i just joined this and don`t know what i`m doing;;how to reply etc. i hve a 66chevelle too; had it since new;;;;you went 10 and 134 with the 496? i`m all ears! are the 496` better than the 505`s and up? my e-mail is [email protected] thanks, Don
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Old 12-04-2007, 04:57 PM
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donovan427
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Originally Posted by blue66
You have a pm.
Brian
How many hp do you think yours has? i`m looking for a big pump gas street motor before the grim reaper gets me;;i`ve beeen a 396/427/433 guy for 41 years and wanted a 505 and up, 700 hp,700lift cam ;;; how did you get yours to hook up? wow, that`s awesome;;do you have a cage? you definatly know what you`re doing!
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Old 12-05-2007, 06:28 AM
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russ67chevelle
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im thinking some of the bbc truck blocks had thick cylinder walls.3999289 has one of the thickest ...... http://cgi.ebay.com/ebaymotors/CHEVY...spagenameZWDVW ....i believe some of the truck blocks can be bored to 4.375 safely!!!something like that if your on a budget.if your gonna keep around for long time and can afford it id recommend an aftermarket block,then you dont take the chance of a used block being cracked,or otherwise someone elses junk!if you shoot for 700 hp as a goal in a 496 or larger motor you shouldnt have many problems...i remember reading about 496 combos making 700 hp on premium pump gas like back around 2002.with a 300 shot of nitrous whoaaaa1000 hp yee hawww!!!bbc stuff is getting so reasonably priced now a days!im thinking you can get a unassembled dart shortblock 540 for about $3500.check ebay or racingjunk.the bigger the motor the easier it will be to make power!torque is what pushes a car down the road(if you can hooker up!!!)cylinder heads are also reasonably priced nowadays,if i was to do it again id buy a cast head then take to engine builder for porting and assembly of good matched components.good luck!!!remember bigger is definatly better!!!
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Old 12-05-2007, 08:52 AM
  #6  
firestone
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On another site (chevelles.com) Tony Mamo (the lead head guy at AFR) just posted about a motor very similar to what you are after. Here is a rundown and then the post.

540 CID Shortblock (Eagle rotating assy w/ JE/SRP pistons).
315 AFR heads (I did some light porting) w/ tulip valve angle milled to provide 11.0 to 1 CR
Vic Jr. Intake with a good gasket match and clean-up in the plenum
Holley 950 HP carb (4150 style)
Custom Comp cam (solid roller) 256/256 @ .050, .680 lift 112 LSA installed at a 109 ICL
ATI Harmonic Balancer
2.125 Headers....(not sure about the other exhaust components).

644 RWHP
620 RWTQ

If you assume a 18% loss through the driveline, that puts it around 750 at the motor. I realize that there was a little porting done on those 315's but I still think you would be over 700 pretty easily with the Fully CNC'd 315's out of the box on that combo.

http://www.chevelles.com/forums/showthread.php?t=201808

Adam
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