DynoSim combinations

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'''355 Gen I Chevy street motor, budget build....
 
'''355 Gen I Chevy street motor, budget build....
 
   
 
   
*Block: '68-'86 Chevy 350 Gen I bored +0.030".
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*Block: '68-'86 Chevy 350 Gen I bored +0.030". Check main bearing bore for round and parallel, align-hone or align-bore, as *necessary to line up the bores and insure they are ROUND. Once the mains are valid, register the block on the main saddle and cut *the block decks to square the block up and set the squish where you want it. I don't want to hear any carpin' about the cost of *cuttin' on the block. If you can't afford to do this stuff, take up another hobby. 
 
*Crank: Stock 350, 3.48" stroke, 2.450" main journal diameter.  
 
*Crank: Stock 350, 3.48" stroke, 2.450" main journal diameter.  
*Rods: Stock 350 5.7". Recommend ARP bolts, re-size big end.  
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*Rods: Stock 350 5.7". Recommend ARP bolts, re-size big end. Here is a set of GM rods that have been worked over. Looks like a *pretty good deal to me, probably would cost less than having your shop re-do your rods....
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*http://www.competitionproducts.com/Custom-Rebuilt-GM-Rod-Chev-350-LJ/productinfo/804335/
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*Scat makes a dandy set of 5.700" forged rods that are affordable....
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*http://www.summitracing.com/parts/SCA-25700P/
 
*Pistons: Keith Black hypereutectic, part #KB193, 12cc D-cup, 5/64,5/64,3/16 rings. 1.561" compression height. Gap top ring 0.026", second ring 0.018".
 
*Pistons: Keith Black hypereutectic, part #KB193, 12cc D-cup, 5/64,5/64,3/16 rings. 1.561" compression height. Gap top ring 0.026", second ring 0.018".
 
*http://www.kb-silvolite.com/kb_car/performance.php?action=details&P_id=155  
 
*http://www.kb-silvolite.com/kb_car/performance.php?action=details&P_id=155  
*Heads: RHS Pro Torquer Vortec 170-64 (part number 12407), 1.94" intake, 1.50" exhaust.
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*Heads: RHS Pro Torquer Vortec (part number 12410), 2.02" intake, 1.60" exhaust.
*http://www.competitionproducts.com/prodinfo.asp?number=RHS12407&variation=
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*http://www.competitionproducts.com/RHS-ProTorker-Vortec-Cast-Iron-Head-170cc_64cc-Bare-Each/productinfo/RHS12410/
 
*These heads will accept either conventional or Vortec type intake manifolds. They are drilled and tapped for both types.  
 
*These heads will accept either conventional or Vortec type intake manifolds. They are drilled and tapped for both types.  
*Intake manifold: Dual-plane, high-rise such as the Edelbrock RPM #7101, Weiand Stealth or Professional Products Typhoon.
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*Intake manifold: Dual-plane, high-rise such as the Edelbrock RPM #7101, Weiand Stealth #8016, Holley 300-36 or Professional *Products Typhoon. Check ebay and craigslist for used manifolds if your budget is tight.  
 
*Carburetor: Vacuum secondaries 750 CFM.
 
*Carburetor: Vacuum secondaries 750 CFM.
*Headers: 1 3/4" primaries, long-tube, equal-length. Install "X" pipe between collectors and mufflers. Run 2 1/2" pipe to the rear through mufflers of your choice.  
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*Headers: 1 3/4" primaries, long-tube, equal-length. Install "X" pipe between collectors and mufflers. Run 2 1/2" pipe to the rear *through mufflers of your choice.  
*Camshaft: CompCams flat tappet hydraulic 260H: [http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=72&sb=0], installed straight up.  
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*Camshaft: CompCams flat tappet hydraulic 260H: [http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=72&sb=0], installed *straight up.  
 
*Rocker Arms: 1.6 ratio on both intake and exhaust.  
 
*Rocker Arms: 1.6 ratio on both intake and exhaust.  
 
*Static Compression Ratio: 9.6:1
 
*Static Compression Ratio: 9.6:1
 
*Dynamic Compression Ratio: 8.4:1
 
*Dynamic Compression Ratio: 8.4:1
*Squish: 0.035" to 0.045". Zero piston deck height with 0.035" to 0.045" head gasket or 0.010" to 0.020" piston deck height with Victor Reinz #5746 head gasket that compresses to 0.025".  
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*Squish: 0.035" to 0.045". Zero piston deck height with 0.035" to 0.045" head gasket or 0.010" to 0.020" piston deck height with *Victor Reinz #5746 head gasket that compresses to 0.025".  
  
 
:'''RPM HP TQ'''
 
:'''RPM HP TQ'''
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*5500 453 433
 
*5500 453 433
 
*6000 450 394
 
*6000 450 394
Stock converter and stock rear gear will work, but would be more fun with a converter that stalls at 2000 to 2200 rpm's and a 3.73 gear. The most out-of-whack spec on this build is the fact that RHS flows their heads on a 4.200" pipe. The resulting flow numbers bear little resemblance to real-life flow on a 4.030" cylinder bore. If you want closer to real, multiply these hp/torque figures by 0.95.
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Stock converter and stock rear gear will work, but would be more fun with a converter that stalls at 2000 to 2200 rpm's and a 3.73 gear.  
 
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Revision as of 15:11, 27 January 2012

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