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I'm looking for opinions on why everyone goes 427 instead of 429 or 434 when building a Dart blocked 2650 equipped motor? The heads will be whatever is available builder is ordering all long block parts next week. Dart LSNext Pro block, Dart CCW crank, Oliver Rods, Diamond pistons, Total Seal rings, Hes suggesting Dart 12 degree 280's but I'm open to Mast, WCCH Brodix or Pro, FED or maybe RHS 6 bolt LS3 hybrids, whatever I can "get" in the next 6 weeks with similar quality and flow potential. Cam will be spec'd by Pat G or Matt with GPTuning once heads have been ordered and bore decided.
I have the basic understanding of everything and have read an unhealthy amount of posts learning from Duck and the others here who are wayyy smarter than I but what I haven't seen is 4" stroke with a bigger 4.155 bore. Goals are 1000whp on E70 with good street manners and reliability. ( I know everyone wants this right...LOL) Car is cruiser weekend warrior occasional strip pass for fun. All supporting mods are already on the car anticipating the Dart block upgrade.
Will the added bore help or hinder the build is there something I'm missing why others aren't running 4.135 or 4.155 with a 2650 ? I'd like to keep the shift RPM 7000 or less and 18-21psi of boost depending on bore.
Car has an FI interchiller, ZL1 lid with FI spacer reinforced brick, 1440 injectors, Fore bigger double pump system 10 supply/8 return, Fore fuel rails, Flex Fuel, LPE HX, 3 gallon under hood reservoir, EMP pump, 4.5" intake, 3" exhaust etc, Currently spinning the shit out of a race ported 1.9 and managing the heat issues which are always a concern so I kinda wanna ease the blower rpm back a bit and not spin the 2650 to 23-26k like I have been this one. Thank you for reading and I appreciate any feedback.
I have the basic understanding of everything and have read an unhealthy amount of posts learning from Duck and the others here who are wayyy smarter than I but what I haven't seen is 4" stroke with a bigger 4.155 bore. Goals are 1000whp on E70 with good street manners and reliability. ( I know everyone wants this right...LOL) Car is cruiser weekend warrior occasional strip pass for fun. All supporting mods are already on the car anticipating the Dart block upgrade.
Will the added bore help or hinder the build is there something I'm missing why others aren't running 4.135 or 4.155 with a 2650 ? I'd like to keep the shift RPM 7000 or less and 18-21psi of boost depending on bore.
Car has an FI interchiller, ZL1 lid with FI spacer reinforced brick, 1440 injectors, Fore bigger double pump system 10 supply/8 return, Fore fuel rails, Flex Fuel, LPE HX, 3 gallon under hood reservoir, EMP pump, 4.5" intake, 3" exhaust etc, Currently spinning the shit out of a race ported 1.9 and managing the heat issues which are always a concern so I kinda wanna ease the blower rpm back a bit and not spin the 2650 to 23-26k like I have been this one. Thank you for reading and I appreciate any feedback.