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Engine Building, Hi Performance Please tell us about your engine builds. What component combos and horsepower output. Let's help each other build better faster engines. Ask or answer questions.

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Old 03-05-2009, 11:33 PM   #11
r66ss

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Otis,

possible, especially with those heads, Was this motor dynoed ? per article ?
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Old 05-31-2009, 10:30 PM   #12
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Hi guys,
I'm new to the forum so please forgive me if this question has been answered before. First, a little background.
I'm 61 years old, and am modifying my sixth "shoe box". It's a 1957 210 2 DR. sedan, currently powered by a 235 inline, with a saginaw 4 speed (3.11 first) and a 3.70:1 positraction rear end. It also has a modified 605 power steering box, poly eurathane (sp)? bushings in all suspension points, stainless steel brake lines, stock rebuilt drum brakes, etc. etc.
However, I'm an ex dragracer, so I need more horsepower and torque. I have a '74 400 small block I wish to put in place of the six cylinder. I have a stock cast iron v-8 bellhousing and a muncie 4 speed. I want to retain the stock chevy 4 point mounting system, along with adding a rear transmission cross member and mount.
My question is: Will the 8 inch harmonic balancer, used for 400's, clear the front motor mounts as used on the 265-283? Surely, some one in this forum has built this combination and knows the answer.
I thank you in advance, toolman
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Old 05-31-2009, 11:30 PM   #13
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Welcome Toolman!! I have a 400sb and I am still using the front and bellhousing mounts, the balancer runs really close and if I remember right the front mount needs to be notched some, been so long ago when I did it I can't remember if I notched mine or not I'm also using a Muncie behind mine, had to find an externally balanced flywheel, with all the options now, that shouldn't be a problem.
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Old 06-01-2009, 04:44 PM   #14
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MightyMouse57,
Thank you. You might be surprised, (I certainly was), how many suposed "experts" on tri-fives could not answer that question. Now, all I need is some money to build the engine.
BTW, how does your 57 run? Does the 406 meet your expectations? The 406 build up at the beginning of this thread lloks very much like one built by a magazine and called "The Imitator". Same engine I'm going to copy in my build up! Ought to be fun in a shoebox, and fully streetable too IMHO. Thanks again.
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Old 06-01-2009, 10:08 PM   #15
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Quote:
Originally Posted by toolman770 View Post
MightyMouse57,
Thank you. You might be surprised, (I certainly was), how many suposed "experts" on tri-fives could not answer that question. Now, all I need is some money to build the engine.
BTW, how does your 57 run? Does the 406 meet your expectations? The 406 build up at the beginning of this thread lloks very much like one built by a magazine and called "The Imitator". Same engine I'm going to copy in my build up! Ought to be fun in a shoebox, and fully streetable too IMHO. Thanks again.
Toolman,
The 406 is awesome, I love the way uneducated people think it's the 283 or even 350. Mine is a mild build that I did myself (minus machine work) back in 1982 or so, it has the dished pistons, .030 over, crank turned .010 on mains and rods, the cam is what I was told is a 375hp 350 cam, camel hump heads that were milled some. I have added since I got her going again last year an Edelbrock air-gap manifold with a 650 thunder carb, Hedman full length headers with 3" pipes all the way back with flowmaster super 40's, just added a Ready-to-Run hei distributor and Blaster 2 coil with new wires.
As far as how does it run? Last night we went for a pizza run and I was getting on the freeway, when I hit third gear it broke the rear tire loose at 60mph, I might add I have 308 gears. Lots of tourque

Hope I answered your question
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Old 06-02-2009, 12:47 AM   #16
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mine is,
stock block 4.160
cast crank 3.875
5.7 rods
cast hyperutechtic pistons
chevy big chamber heads, big valves, ported
solid roller cam
victor jr intake 750 holley
i think it comes out to about 418 or so cubes. its been a long time and my records were lost in the move. the thing makes incredible torque and realy feels good under your foot.:eek:
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Old 06-13-2009, 12:22 PM   #17
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My 388
on pump gas 93 octane
hp 448
tq 495.5
block 76 350 4 bolt studded
bored 60 over
crank eagle forged
rods eagle I beam arp bolts
pistons speed pro hyp/coated 10.25 compression
cam comp 290
rhodes lifters
pete jackson gear drive
heads world motown 220 cast iron
manifold edelbrock air gap dual quad
msd pro billet dist
msd 6al
34 deg timing
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Old 07-02-2009, 12:31 PM   #18
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Great Thread that build looks pretty simliar to my 406 going togther now!
heres a few specs on it

1970 4bolt ARP studs
10.8.1 Mahle forged flat top pistons
3.75 Scat crank Internally balanced with 6" Scat rods
Lunati VooDoo solid roller 242/249 @.050 595"
210 Pro filer alumin. heads 64cc 2.055-1.60
1.5 harland sharps and girdle
AFR rev kit
PP hurican poilished intake and 750 mighty Demon
HVH 1" poilished super sucker carb spacer
Stefs oil restictors
7 quart pan with kick outs and trap door
Melling select pumnp 15% over with bolt on pickup
SFI dampner Billet Specialties pulley
Cloyes True billet double roller with torrington bearing
CSR electric pump
Msd Billet ignition
1 5/8 fenderwell headers with 3" magnaflow exaust




Last edited by Pro Fleetline; 07-02-2009 at 12:35 PM..
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Old 10-24-2010, 01:16 PM   #19
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Here is a build we did a few years ago with AFR's and we did Vortec headed 383 and the heads had a little extra work done to them and made pretty much the same numbers.

Here is a link to the build.
http://www.chevelles.com/forums/showthread.php?t=106715
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Old 11-03-2010, 11:00 PM   #20
billybelair
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I just bought a 55 post with a smallblock 406 built to these specs:

Engine = 406ci, 4.155x3.75 internally balanced assembly

Compression = 9.5:1

Ignition Timing = 36 Degrees

Block = Factory 400 2 bolt main

Crankshaft = Factory Chevy cast steel

Rods = Factory Chevy 400

Pistons = Keith Black forged dished pistons

Oil Pan & Pump = Stock 4-quart & stock pump

Camshaft = Camonics solid lifter 525 lift 260 duration

Rocker Arms = 1.5:1 Harlan Sharp

Heads = Chevy Bowtie heads ported and flowed by Juan Mendoza of Airflow technology 61 cc chambers

Valve Sizes = 2.06/1.60

Intake Manifold = Edelbrock Victor Jr

Carburetor = 750 cfm Holley double pumper

Ignition = MSD Distributor

Headers = 1 3/4 Hooker Super Comp

I don't think its ever been dyno'd but I hope its making around something like one horsepower per cubic inch. Hopefully something like 400 to 420 horsepower with around 440 pounds of torque but I don't know.


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