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My POS 401 build
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jarcher401 View Drop Down
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Joined: Mar/11/2012
Location: pa
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Points: 79 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jarcher401 Quote  Post ReplyReply Direct Link To This Post Topic: My POS 401 build
    Posted: Oct/17/2012 at 8:52pm
Here is a mild 401 I built for my 77 cj7.

.30 over
8.5:1
Edelbrock Performer
Edelbrock 650 Carb
Lunati 64501...... 256/262 and 484/507
D.U.I Distributor
Comp Double Roller
Bulltear Crank and water Pulley
valve job and mild port and polish
Taylor Wires

Goes to the Dyno in two weeks














Valve Job








Checking Preload
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Traveller View Drop Down
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Joined: Feb/26/2011
Location: Idaho
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Points: 1011 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Traveller Quote  Post ReplyReply Direct Link To This Post Posted: Oct/17/2012 at 11:41pm
I like the aluminum painted steel heads!
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budryzer View Drop Down
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Joined: Mar/15/2012
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Points: 758 		Post Options Post Options   Thanks (0) Thanks(0)   Quote budryzer Quote  Post ReplyReply Direct Link To This Post Posted: Oct/18/2012 at 5:29am
Nice! I'm curious as to what kind of numbers it gets too. If we could all posts guesses, it might be a neat contest?
1968AMX Stroked 369
"UNCLE SAM" tribute
04 H2
04 BMW 325
A/W 95 Ultralight Hobbycopter
85 CR500 x 2 and 13 other open Class Bikes
77 Hercules
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1970AMX390/4spSonicw/mask&3Gremm's
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Lenni AMC View Drop Down
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Joined: Jun/05/2011
Location: Iceland
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Points: 427 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Lenni AMC Quote  Post ReplyReply Direct Link To This Post Posted: Oct/18/2012 at 6:06am
Gonna say 300-320 hp @ 5500-6000 rpm

This will have brutal low end,

bump the compression and bigger cam it should make 400 hp no problem


Edited by Lenni AMC - Oct/18/2012 at 6:10am
AMC Gremlin w/401
6.212 @ 117.01 - 1/8 Mile
9.785 @ 133.11 - 1/4 Mile
https://www.youtube.com/channel/UCikyNqrfpMB8VzLd910Hkhg

https://rbjracing1.wixsite.com/website
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69 ambassador 390 View Drop Down
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Joined: Nov/22/2009
Location: Peoria, AZ
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Points: 3539 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 69 ambassador 390 Quote  Post ReplyReply Direct Link To This Post Posted: Oct/18/2012 at 6:25am
I'm gonna say 330/445 if the carb is tuned rite!
Steve Brown

Algonac, Mi.

69 Ambassador sst 390

84 Grand Wagoneer

69 Cougar XR7

65 Fairlaine 500XL

79 F-350 Super Camper Special
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jarcher401 View Drop Down
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Points: 79 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jarcher401 Quote  Post ReplyReply Direct Link To This Post Posted: Oct/18/2012 at 8:52am
My dad had a similar build dynoed at 300/400

Except he had:
stock headers
No porting
No HEI
And an edelbrock performer cam that was barely better than stock

I think its going to be around 330/425
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FSJunkie View Drop Down
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Points: 4742 		Post Options Post Options   Thanks (0) Thanks(0)   Quote FSJunkie Quote  Post ReplyReply Direct Link To This Post Posted: Oct/18/2012 at 9:47am
I like the valve covers.
1955 Packard
1966 Marlin
1972 Wagoneer
1973 Ambassador
1977 Hornet
1982 Concord D/L
1984 Eagle Limited
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budryzer View Drop Down
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Location: Toms River, NJ
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Points: 758 		Post Options Post Options   Thanks (1) Thanks(1)   Quote budryzer Quote  Post ReplyReply Direct Link To This Post Posted: Oct/19/2012 at 4:14am
I'm going with 348 hp and 427 tq at 4800 rpm:)
1968AMX Stroked 369
"UNCLE SAM" tribute
04 H2
04 BMW 325
A/W 95 Ultralight Hobbycopter
85 CR500 x 2 and 13 other open Class Bikes
77 Hercules
Chinook Flt Lead
Prev
1970AMX390/4spSonicw/mask&3Gremm's
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70Javelin360 View Drop Down
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Joined: Feb/20/2008
Location: waukegan, il
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Points: 153 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 70Javelin360 Quote  Post ReplyReply Direct Link To This Post Posted: Oct/19/2012 at 3:51pm
340hp
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jarcher401 View Drop Down
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Points: 79 		Post Options Post Options   Thanks (1) Thanks(1)   Quote jarcher401 Quote  Post ReplyReply Direct Link To This Post Posted: Nov/01/2012 at 5:19pm
I will post the graphs up tonight.

The 401 made 367hp and 450tq

Should make the cj move really well
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