Building a 340 engine

Magnus707 said

Hi,
I need some help. I am not an expert on Mopar small block so I need some advice.
I have some parts, not sure what to use and in what combination. This is what I have.

• 340 block Standard from 1971
• Two alternatives when it comes into heads;
  • x-heads with 2.02 and 1.6 valves. Fully restored with Manley stainless steel valves. Manley Severe Duty Series Stainless Steel Valves 11782-8 2.02 and
    Manley 11781-8 - Manley Severe Duty Series Stainless Steel Valves 1.6
  • Heads Edelbrock #61779 Performer RPM
• Rocker Arms CCA-1622-16
• Two alternatives when it comes into manifolds
  • Edelbrock Part # 2176 Performer intake
  • Edelbrock Part # 7576 RPM Air-Gap intake
• Mopar Performance Forged Crankshaft - P5007253 with 3.58 stroke
  
• Eagle Connecting Rod Set SIR6123
  
• CompCam Xtreme Energy 212/218 Hydraulic Flat Cam XE256H
  
• Ignition
  • Ignition, MSD Ignition Box 6AL, PN 6426
  • Distributor MSD
  • Coil MSD
• Carbs, Edelbrock 1405 and 1407
• Mopar Small Block Camshaft Thrust Plate
• Dura bond Block Hardware & Head Dowel Kit 1964-2003
• ARP Head Stud Kit144-4001 sb Chrysler 273 318 340 360 WEDGE Hex nuts
  
• New Cam Bearings & Brass Freeze Plug Set 1957-1978 Chrysler 273 318 340 360
  
• Clevite CB481HN Engine Connecting Rod Bearing Mopar 318 340 360 408
  
• Mopar Performance P5153513, 318-340 Main Bearings, Standard, H-Style
  
• Oil pump Melling volume High, M72HV
• Fuel Pump, Edelbrock EDL-1720
• Summit Racing Harmonic Balancer, SFI SUM-C4277

• Major part missing is pistons

The engine shall go be used in a Dodge Business Coupe from 1936. I have also a 727 and 83/4 rear axle with 3.73 gear. I will use 16" rims.
I will use it in the street almost as a daily driver. I would like to have as high power and torque as possible. It would be great if I could get close to 500 hp. I prefer to use what I have as long it makes sense.

Click to expand...

500 hp is pretty high hp per cid especially for a daily driver. Plus the X heads are good for about 400 hp and eddies 450 hp unported, It takes a 360 ish size engine make peak hp about 500 hp @ 6500 rpm, 450 hp @ 5900 rpm, 400 hp @ 5200 rpm, 350 @ 4600 rpm.

Around 1 Hp per cid for most is about the best compromise for street friendly performance, for some 1.1 hp per cid, Above that your more into street strip territory.

I'd go with with Eddies and a high lift short duration hydraulic roller, kind of how new Hemi and LS make power all head flow with moderate cam.















[/QUOTE]