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V8 Avenger Project - Phase III (all about horse power)
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Author Topic: V8 Avenger Project - Phase III (all about horse power)  (Read 1422 times)
V8 Sleeper
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V8 Avenger Project - Phase III (all about horse power)
« on: May 08, 2008, 11:47:31 PM »

The car has made a total of 9 passes down the dragstrip without any problems. Best time is 15.9 seconds @ 90 mph with a junk yard 305.  The 305 was never more than a placeholder to get everything fitting around it. It's time to build the motor that the car now deserves.  Phase III is dedicated to the new motor and the results that come with some serious horse power.

I have all the parts to build the new 385 stroker, just waiting for the machine work to be completed on the block (hopefully by this Saturday).  Here is the comparison on the 305 and 385:

Current Chevy 305

  • Paid $100 for rusty greasy junky motor
  • Degreased at local car wash with oven cleaner
  • Found to have broken lifter and timing chain stretched to the point it could almost be removed without taking the gears off
  • Installed new timing chain, cam and lifters
  • Added chrome accessories for self gratification
  • Got a good deal on Edelbrock performer intake and 600cfm carberator (likely too much cam and carb robbing all low end torque
  • Estimated horse power 160-175

New Chevy 385 stroker

  • 350 4 bolt main block, pressure tested, bored .040 over and ground for stroker rotating assembly
  • Eagle 385 balanced rotating assembly with 12cc dish top pistons
  • Edelbrock Performer RPM aluminum 64cc heads puts motor at about 9.9:1 compression
  • Edelbrock Performer RPM Cam kit
  • Edelbrock Performer RPM air gap intake
  • Holley 770 Street Avenger carberator (couldn't resist Roll Eyes)
  • Polished aluminum accessories instead of tinny chrome
  • Estimated horsepower 410-450
  • Cost ~$4000
« Last Edit: May 09, 2008, 01:17:41 AM by V8 Sleeper » Logged
Darktengu
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Re: V8 Avenger Project - Phase III (all about horse power)
« Reply #1 on: May 09, 2008, 12:19:37 AM »

I smiled when I saw the thread was started.

Where are you located again??  I know Wisconsin, but I'm in Oshkosh for training right now and if you're your within an hour or so I'd like to stop by and check the car out.  Probably sometime next week.
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V8 Sleeper
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Re: V8 Avenger Project - Phase III (all about horse power)
« Reply #2 on: May 09, 2008, 12:33:59 AM »

I'm 5 miles north of Albany, WI.  I think it would be about an hour and a half drive for you.  Next week might not be so good, neither motor will likely be in it.  Save your trip for coming to see it at the drag strip later this month.
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Darktengu
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Re: V8 Avenger Project - Phase III (all about horse power)
« Reply #3 on: May 09, 2008, 12:46:13 AM »

Sounds like a plan!
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79_99_bro
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Re: V8 Avenger Project - Phase III (all about horse power)
« Reply #4 on: May 09, 2008, 04:31:35 AM »

nice setup.  big gain over that 305. 
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1999 Sebring LXI - 2.5 V6 - 18" Enkei Rims, Viper Alarm and Start -Daily Driver
1979 Camaro - 383 Stroker -  To many to list........ - Summer and Weekends
97avengerguy
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Re: V8 Avenger Project - Phase III (all about horse power)
« Reply #5 on: May 09, 2008, 05:21:57 PM »

Bad ass man.. Cant wait to see it when its built.
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CMC
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Re: V8 Avenger Project - Phase III (all about horse power)
« Reply #6 on: May 09, 2008, 05:30:48 PM »

how about mid summer i come down too... we can race at the drag strip:) Grin i figure this is when my car will be done.



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97avengerguy
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Re: V8 Avenger Project - Phase III (all about horse power)
« Reply #7 on: May 09, 2008, 05:33:53 PM »

Id be there for that race Grin
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JamesBondo
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Re: V8 Avenger Project - Phase III (all about horse power)
« Reply #8 on: May 09, 2008, 09:37:20 PM »

im in connecticut sounds like a ROAD TRIP!!! ill bring my 2.5l MONSTER haha jk. serious about the road trip tho!
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Some people see a $100 Avenger hit by a snow plow. I see potential. Where some saw a headache. I saw the $1500 in my pocket after I sold it.
Anson
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Re: V8 Avenger Project - Phase III (all about horse power)
« Reply #9 on: May 10, 2008, 01:18:59 PM »

*drools*

oh and the holley 770 street AVENGER is a nice touch

man, we all have to drive and see this beast running.
« Last Edit: May 10, 2008, 01:20:56 PM by Anson » Logged

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Re: V8 Avenger Project - Phase III (all about horse power)
« Reply #10 on: May 10, 2008, 01:50:13 PM »

just looking at the thread again and cant believe i didnt do this... +1 Karma!
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Some people see a $100 Avenger hit by a snow plow. I see potential. Where some saw a headache. I saw the $1500 in my pocket after I sold it.
V8 Sleeper
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Re: V8 Avenger Project - Phase III (all about horse power)
« Reply #11 on: May 12, 2008, 01:03:13 AM »

305 is out.  Machine work has not yet been done on the new block so I'm still waiting on that.  Doesn't really matter at this point as I have some work of my own to do now.  While pulling the motor and transmission out I noticed a massive crack in the bellhousing of the transmission (see picture below).  So I've orded a JW Ultra Bellhousing and will be working on modifying the transmission with it.  Thought about getting a new transmission but to make it worth while I would have had to spend over $1000 and it would still have a weak bellhousing.  This way I'll have an SFI approved strong and safe bellhousing and can always rebuild the transmission later if needed.  The bellhousing ran $230 and while I was at it I ordered a new cast aluminum deep transmission pan.  I'll take pictures when I receive them.  Here is a picture of the 305 after being removed:


305 retired, it served it's purpose.


Hard shifts likely did in the bellhousing.  This transmission really slams the gears hard!
« Last Edit: May 12, 2008, 01:48:30 AM by V8 Sleeper » Logged
Darktengu
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Re: V8 Avenger Project - Phase III (all about horse power)
« Reply #12 on: May 12, 2008, 02:31:29 AM »

That reminds me I need a new bellhousing too....

Glad to see the progress is coming along.  I'll be posting up my disturbing progress soon.
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97avengerguy
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Re: V8 Avenger Project - Phase III (all about horse power)
« Reply #13 on: May 12, 2008, 03:47:07 PM »

Good to see progress. Grin
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V8 Sleeper
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Re: V8 Avenger Project - Phase III (all about horse power)
« Reply #14 on: June 02, 2008, 02:47:52 AM »

Still waiting on that block work to be completed.  The machinest had to send the crank back to the manufactor for a replacement after it didn't measure up to their standards.  Here are some pictures of the transmission after I cut off the old bellhousing and bolted on the replacement.







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