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Calling all 427 small block owners

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Old 10-06-2017, 01:43 PM
  #41  
v2racing
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Originally Posted by pauldana
https://www.corvetteforum.com/forums...ort-block.html


NEW ENGINE SPECS 650HP

My 427 build from the bottom up:
Dart SHP block
Milodon 7qt road race oil pan
Milodon diamond stripper windage tray
Calis Dragon Slayer Crank
Skat H-beam's
Probe racing pistons 11:1 forged
AFR competition ported 220 heads w/titanium keepers and locks
AFR plastic single plain titan intake manifold
Sportsman XFI 2.0 fuel injection system by FAST..
MSD full ignition with crank trigger
Kooks 1 7/8 ceramic headers
3" duel mandrel bend exhaust with X-pipe custom made by D&C design... my son Danny:-)
Borla mufflers
march pulley system
22 lb steel billet flywheel
McCloud twin disk clutch
Fluidamper 6 1/4" HB
Custom Cold Air Intake by me:-) D&C design
Custom cam by Strub 611/592 244/248 109 Sep
Morel reto hydraulic lifters
Crain gold race RR's
TKO 600 transmission
SUPER 10 rear end built by trackdog2
18" custom built 2 piece centerline wheels
Willwood big brake system all around
hydroboost braking
rac-n-pinion steering
550 springs up front, 360 composite in back with all Bilstin sport shocks and front and rear sway bars
3" HD Dewitts radiator
DELTA PAG brushless fan w/D&C custom fan shroud
Dewitts 3" heavy duty radiator
Paul, you have a 4.185" bore with a 3.875 stroke don't you?

Larger bores help small block heads breath better. Although .060" doesn't seem like much, every little bit helps.

Mike
Old 10-06-2017, 02:48 PM
  #42  
MotorHead
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Originally Posted by bmans vette
How does a Dart SHP 400 match up to a Motown?
Txs
Dennis
The biggest difference is the Motown block will accept a 4 in. crank with no clearancing.
The second is the Motown has all 5 mains 4 bolt with the inner three splayed.
And you can order billet steel main caps. Making it a solid base to build a high HP engine.
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Old 10-06-2017, 04:24 PM
  #43  
pauldana
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Originally Posted by v2racing
Paul, you have a 4.185" bore with a 3.875 stroke don't you?

Larger bores help small block heads breath better. Although .060" doesn't seem like much, every little bit helps.

Mike
I do believe you are correct...
Old 02-15-2018, 11:49 AM
  #44  
KJL
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I am a little late to the game on this but my details are in my sig below. The HP/TQ are engine dyno values. Chassis values to come.
Old 02-15-2018, 12:02 PM
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pauldana
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Originally Posted by KJL
I am a little late to the game on this but my details are in my sig below. The HP/TQ are engine dyno values. Chassis values to come.
I believe those numbers.. you have a bit more cam, a few more cubs and 1 size up on the heads.. other than that you have my build... I'm at 650
last Dyno was 525 at the rear wheels..
it will be nice to see your chassis dyno...
Old 02-15-2018, 12:14 PM
  #46  
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Originally Posted by pauldana
I believe those numbers.. you have a bit more cam, a few more cubs and 1 size up on the heads.. other than that you have my build... I'm at 650
last Dyno was 525 at the rear wheels..
it will be nice to see your chassis dyno...
It has been a long process, now that I have located a dyno facility near my house, it will happen soon.
Old 06-13-2018, 10:04 AM
  #47  
Forrest Schreier
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Default Check out white performance

I have had 427 sb for about a year now. Built by white performance in Tennessee, they had the best prices I've found if you're looking at create engine, they also have a two year warranty. Mine has dart black, eagle 4340 crank, eagle h beam rods, mahl pistons, comp cams hyd. Roller .598 lift/ 110 valve separation, comp cams rockers, afr 220 heads, edelbrock super victor, and Holley 850 xp. Makes 670hp/610tq on 91 octane @ 10.25to1. It is very fun to drive on the street.
Old 06-13-2018, 03:06 PM
  #48  
drwet
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Originally Posted by Forrest Schreier
I have had 427 sb for about a year now. Built by white performance in Tennessee, they had the best prices I've found if you're looking at create engine, they also have a two year warranty. Mine has dart black, eagle 4340 crank, eagle h beam rods, mahl pistons, comp cams hyd. Roller .598 lift/ 110 valve separation, comp cams rockers, afr 220 heads, edelbrock super victor, and Holley 850 xp. Makes 670hp/610tq on 91 octane @ 10.25to1. It is very fun to drive on the street.
This is a very old post. I've been driving that 427 for a couple of months and I can't imagine building any other small block now. Very similar to your build. AFR220 heads, Howards hydraulic roller 243/231. Doesn't feel like 670 HP although I haven't revved it past about 5500 rpm. What are your cam specs, and what rpm are you at when you see 670 HP?
Old 06-14-2018, 12:38 PM
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It's a comp cams part#12-000-8 .598/.583 duration @.050 251/255 110valve seperation. Max torque @ 5100 max hp @ 6200. They run this same engine in circle track and turn 8000 for 35 laps mine is limited at 6600. also running a super sucker spacer



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