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#1
11-12-2008, 12:42 AM
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455 Build
Winter is upon us,so i plan on putting my motor together and in.I built a 455 a few years ago and nos took it from me.
 But heres the specs on my new build:71 block bored .060,factory rods,H.O. cam HC-03A don't know the specs i think somewhere around 244/252 -.498/.512 114 108,comps pushrods 5/16" 9.136",harland sharps 1.65 rockers,comps 995 springs,pete jackson gear drive,ported h.o aluminum intake w/holley 800 dbl pmp,pistons are trw plugs,and heads are yet to be bought probably 6xs due to availabilty.Now ? is this a bad setup..is there anything wrong here,plus i gonna snap it with bout 175 nos once i get it tuned.o-yah i put cast rings in,does that matter over molys?
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#2
11-12-2008, 01:05 AM
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Looks pretty good, I would ditch the Factory Cast rods and cast rings for forged replacement rods and moly rings and get some lighter piston pins, other than that the cam is not really the best for N20 but will be an animal N/A, Get the 6x Heads from SD-performance 250-260cfm and go run 11's NA! JMO
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D.S.R.E. Your NW Pontiac Street/Strip Engine Builder, Specializing in Cylinder Head,Intake Manifold,and Exhaust Manifold Porting services and Building the Most Efficient stock rebuilds to Hi HP Pump Gas and Race Combinations for Pontiac,Buicks,Olds,FE Fords,385 Series and HP Gen 3 and 4 LS engines! 2006 silvy Z71 4X4,383 LS 600+hp NA Shared Toy-66 Lemans 470cid by me 537hp 580tq-manifolds, 570hp 590tq-2"headers,custom cam,rpm intake, mild e-heads, Looks stock ;-} |
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#3
11-12-2008, 01:15 AM
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The difference on my old build was i had comps 1.5 rockers,and i think? 13 heads told they were raiii but they were the 350s and it was an brutal ran 150 nos on it then i only turned it 5800..o-yah i forgot 2 say then i had a 3200stall on my turbo 350 w/4.10 gears @ 3400lb car:now i have a 2500 stall turbo 350 w/3.42s @ 3400lb car ran a 2 1/4 exhaust before but i guess i will run a 2 1/2 this time.
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#4
11-12-2008, 01:34 AM
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Yeah should run like a scalded Dog! Just gotta make it reliable with a couple better parts IMO!
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D.S.R.E. Your NW Pontiac Street/Strip Engine Builder, Specializing in Cylinder Head,Intake Manifold,and Exhaust Manifold Porting services and Building the Most Efficient stock rebuilds to Hi HP Pump Gas and Race Combinations for Pontiac,Buicks,Olds,FE Fords,385 Series and HP Gen 3 and 4 LS engines! 2006 silvy Z71 4X4,383 LS 600+hp NA Shared Toy-66 Lemans 470cid by me 537hp 580tq-manifolds, 570hp 590tq-2"headers,custom cam,rpm intake, mild e-heads, Looks stock ;-} |
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#5
11-12-2008, 01:45 AM
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Thats what i want 440,you dont think the rods arent any good?what pistons?and last do you have a link to SD for the heads?Do you think 2 1/2 exhaust will be ok?really dont want 2 be 2 loud(hence 3")
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#6
11-12-2008, 01:59 AM
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http://www.sdperformance.com/ The rods might be fine resized with ARP rod bolts But I believe its a ticking time bomb on the Squeeze, Good Rods like The Tomahawk forged rods from SD or Eagle H-beams, The TRW are ok but IMO need a Lighter weight pin and use a Good Speed Pro Moly Ring Set, See the lighter the rods/pistons/pins get the Stronger it gets and less stress will be placed on the block, as long as you use decent parts you will be fine, I doubt you will even hit 6000 rpm, Keep compression at 9.5:1 Minumum for 92-93 octane fuel with that cam, a Torquer 2 intake or Performer RPM would be my choice with an 850 Holley Based carb, 1-3/4 Minumum Primary Header, oh And Don't Skimp on the Converter!!! a Continental 3500 stall or Red Neck 3500 would be best for that Cam IMO, Goodluck !
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D.S.R.E. Your NW Pontiac Street/Strip Engine Builder, Specializing in Cylinder Head,Intake Manifold,and Exhaust Manifold Porting services and Building the Most Efficient stock rebuilds to Hi HP Pump Gas and Race Combinations for Pontiac,Buicks,Olds,FE Fords,385 Series and HP Gen 3 and 4 LS engines! 2006 silvy Z71 4X4,383 LS 600+hp NA Shared Toy-66 Lemans 470cid by me 537hp 580tq-manifolds, 570hp 590tq-2"headers,custom cam,rpm intake, mild e-heads, Looks stock ;-} |
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