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427 stroker

 
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r351winner
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Joined: 19 Jan 2007
Posts: 10

470.14 points



PostPosted: Fri Jan 19, 2007 3:08 am    Post subject: 427 stroker Reply with quote

this is my new setup i am building and was just curious to any sugestions

as far as bottom end im taking my 351 windsor block .040 over and as far as rotating assembly .......
High Carbon Cast Steel 4.170" Stroke CrankShaft
CHP Forged Steel 6.125" CNC Beam Rods with ARP Rod Bolts (H-Beam Rod Upgrade Available)

Probe Racing SRS Forged Pistons
Wristpins and Spirolox
Clevite77 Main Bearings
Clevite77 Rod Bearings
Moly Ring Package

as far as cam i am runnin schnieder cam at .730/.730 lift and 286/286 @ .050 duration solid roller cam with shaftmount rockers

for heads im running the edelbrock glidden victor cnc heads with 61cc chambers 280cc runners and 2.15/1.56 valves

my carb is a 750cfm demon square bore

here is my old setup that i was running

351 sb windsor, comp cam ( .594.600/.242.248), victor jr. heads (2.05/1.60) 210 runners 64cc chambers, lt headers, air gap performer intake, 750cfm demon carb square bore, msd 6al ignition 8.8 wires pro billet distributor, built tranny , 9inch rearend

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83 ranger
mods= 351 sb windsor, comp cam ( .594.600/.242.248), victor jr. heads (2.05/1.60) 210 runners 64cc chambers, lt headers, air gap performer intake, 750cfm demon carb, msd ignition , built tranny , 9inch rearend, 6pt roll cage, kirkey seat, gt wheel, shortblock, 1.6 rockers
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William Jones
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Joined: 30 Jan 2006
Posts: 820
Location: Lake city, FL
28456.50 points


1971 Ford Mustang

PostPosted: Fri Jan 19, 2007 7:01 am    Post subject: Reply with quote

Is this strictly a Drag motor if so I would run at least 12.1 compression with that cam. It is a little big for Flat top pistons in my opinion. I would also go with H-beams gives you a little added security and room to grow. A stud girdle would also be a good idea with a stock block. The rest looks pretty good. What did you pay for the Victor glidden heads I was looking for some for a motor I am building for someone?
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92 LX 454ci Clevor 9.24@142.53 N/A
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r351winner
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Joined: 19 Jan 2007
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PostPosted: Fri Jan 19, 2007 7:12 am    Post subject: Reply with quote

William Jones wrote:
Is this strictly a Drag motor if so I would run at least 12.1 compression with that cam. It is a little big for Flat top pistons in my opinion. I would also go with H-beams gives you a little added security and room to grow. A stud girdle would also be a good idea with a stock block. The rest looks pretty good. What did you pay for the Victor glidden heads I was looking for some for a motor I am building for someone?


yeah i am gonna go with h beams ....... you can get the glidden heads from summit for round 1400 depending on what u want with em

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83 ranger
mods= 351 sb windsor, comp cam ( .594.600/.242.248), victor jr. heads (2.05/1.60) 210 runners 64cc chambers, lt headers, air gap performer intake, 750cfm demon carb, msd ignition , built tranny , 9inch rearend, 6pt roll cage, kirkey seat, gt wheel, shortblock, 1.6 rockers
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mike ward
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Joined: 21 May 2007
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PostPosted: Wed May 23, 2007 6:28 pm    Post subject: Reply with quote

what should the compression be on a 347 with a 236-246@50 with a .579lift holleysystemax victor jr heads 36lb injectors[/list]
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af2
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Joined: 01 Sep 2003
Posts: 5557
Location: grassvalley, ca
71191.50 points


1933 Willys Coupe

PostPosted: Wed May 23, 2007 6:51 pm    Post subject: Reply with quote

mike ward wrote:
what should the compression be on a 347 with a 236-246@50 with a .579lift holleysystemax victor jr heads 36lb injectors[/list]



Street or drag?

Big difference!
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Big Dave
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Location: Tampa Florida
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PostPosted: Wed May 23, 2007 10:45 pm    Post subject: Reply with quote

Not that H-beams are inherently stronger than I-beams in terms of geometry, the H-beam gets my vote because of improved clearances on the big end. That and every H-beam rod has every surface machined as there are no cast H-beams, all hogged out of billet.

Big Dave
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ninedee-coupe
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PostPosted: Thu Aug 09, 2007 1:31 am    Post subject: Reply with quote

with your setup of having a.040 bore and stroke of 4.17 your really a 428ci lol if it makes you feel any better
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Knarley Darley
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PostPosted: Thu Aug 09, 2007 1:20 pm    Post subject: Reply with quote

Will the heads handle that much lift? I think it would run better with less duration. That cam is BIG. Otherwise sounds pretty cool.
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af2
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Location: grassvalley, ca
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1933 Willys Coupe

PostPosted: Thu Aug 09, 2007 4:37 pm    Post subject: Reply with quote

Knarley Darley wrote:
Will the heads handle that much lift? I think it would run better with less duration. That cam is BIG. Otherwise sounds pretty cool.


I see no way without using different springs. The springs that come with the heads are good for .600 at most and don't have the compessed (open) # you need to keep the valve stable at any RPM with a roller.

That is a cool set up though!
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wagon train
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Joined: 07 Jun 2007
Posts: 258
Location: Orange City, FL
7307.16 points


1983 Mercury Capri

PostPosted: Sat Aug 11, 2007 2:23 pm    Post subject: Reply with quote

That big of an engine will have over 12 - 1. Lets say he has total TDC volume of 80cc assembled thats 12-1.I think thats the big side.A .047 thick head gasket will only be 10cc at most.
It also needs more carb.A 750 is a restrictor plate on that engine combo.


I would run a Dominator with that combo and make some real power.



But I am all for race parts on the street.

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clay
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Location: South Carolina
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1972 Chevrolet Nova

PostPosted: Sat Aug 11, 2007 9:13 pm    Post subject: Reply with quote

That cam is way larger than anything that I have ran before but a over 12 - 1 427" motor should handle it in a drag race setup. I do agree with wagon train on carburetor size though - either the largest 4150 style or better yet - a Dominator like he suggested. Clay
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