Dlow1966

Hello im looking for some advice on adding more horse power to a new crate Chev 350/357 hsp. Where and what's your thoughts..
As the latest in Chevrolet Performance’s Street Performance crate-engine lineup, the SP350/357 is designed as an affordable performer to match just about any budget. Better still, it uses strong components and modern technology to make it a better alternative to rebuilding. The SP350/357 leverages the strength of a strong rotating assembly secured in a brand-new block with four-bolt mains, and matches it with modern valvetrain technology to support high-rpm capability.

• Horsepower

  357 HP
  

• Torque

  407 LB-FT
  

• Tech Specs

  Engine Type: Chevy Small-Block V-8
  
  Displacement (cu. in.): 350
  
  Bore x Stroke (in.): 4.000 x 3.480
  
  Block (P/N 10105123): Cast iron with 4-bolt main caps
  
  Crankshaft (P/N 10243070): Nodular Iron
  
  Connecting Rods (P/N 10108688): Powdered metal
  
  Pistons (P/N 88894280): Cast aluminum
  
  Camshaft Type (P/N 12677151): Hydraulic roller
  
  Camshaft Lift (in.): 0.473” intake / 0.473” exhaust
  
  Camshaft Duration (@.050 in.): 215° intake / 223° exhaust
  
  Cylinder Heads: Cast iron; as cast with 64-cc chambers
  
  Valve Size (in): 1.940 intake / 1.500 exhaust
  
  Compression Ratio: 9.0:1 nominal
  
  Required Fuel: Premium
  
  Maximum Recommended rpm: 5600
  

sofakingdom

iTrader: (1)

Be aware, this is a REAL engine, not like imports, where you buy this fart can muffler and it "adds" 15 HP, that cold air intake and it "adds" 25 HP, some tune and it "adds" 20 HP, some kinda krome something or other and it "adds" 10 HP, and so on; so when you get done with all that, you've DOUBLED your original 90 HP, butt still aren't going any faster, except by way of weight reduction, concentrated at the center of the owner's wallet. Can't imagine how that could happen.

What car is this going in? What else has been done to the car to support "high performance"? Gears, converter, exhaust system, ??? What induction system is going on it? What intake manifold does it have?

AlkyIROC

In today's market, it would be easier, cheaper more cost productive to drop in a 4.8 or 5.3 LS engine

Dlow1966

thanks and what I've done so far is as followed.
Detroit locker with 342 gears
dual exhaust
long tube headers
dual plane RPM intake
dual cold air intakes
Electric, holy fuel pump, and regulator
650 Holley
3000 stall converter
Electric fan
Holley high flow water pump

it's going in 1958 Chev Apache truck

Dlow1966

thanks and what I've done so far is as followed.
Detroit locker with 342 gears
dual exhaust
long tube headers
dual plane RPM intake
dual cold air intakes
Electric, holy fuel pump, and regulator
650 Holley
3000 stall converter
Electric fan
Holley high flow water pump

it's going in 1958 Chev Apache truck