Upcoming Project
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Upcoming Project

  1. #1
    steelcomp was here
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    Default Upcoming Project

    Hey everyone, keep an eye out for my upcoming build on a carb'd 871 blown 489 BBC with lots of nice parts. I'll be doing a complete photo essay as I go with lots of build tips and text. Targeting somewhere around 850hp on pump gas with a hyd. roller.
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

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  3. #2
    Nobody
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    Lookin forward to seeing it!..

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    LP-25.com Infomaniac's Avatar
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    cool man !!

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    NOSTALGIC V-DRIVES DIMARCO21's Avatar
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    Very cool. I'm interested in your hyd. cam specs.

  7. #5
    steelcomp was here
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    Quote Originally Posted by DIMARCO21 View Post
    Very cool. I'm interested in your hyd. cam specs.
    Probably one of the last things I get to, but I'll post them.
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

  8. #6
    steelcomp was here
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    Default Getting started

    Well, we've got to start somewhere, and I'm bored tonight, so I'll start with a few pics and a build description.
    Shipping and receiving...my livingroom. The parts are starting to stack up. Crank and balancer are getting a double keyway. Blower from BDS is on it's way.



    Block is finished machining. New machine shop does real nice work. Block surface and bore work is done in a CNC mill, along with bottom end clearancing. Final hone is done on a new Rottler honing machine.



    Here's my new toy.

    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

  9. #7
    steelcomp was here
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    Here's a a pic of the CNC clearancing on the bottom end. The factory clearance is usually enough for 4.25 stroke, but this just makes sure.



    Canfield 310s bought bare come with unfinished seats and guides. This gives me the flexability to cut the seats how I want, and to be sure the guides are finished correctly.



    Here's a rundown on the build.

    *Mk IV block, 4 bolt w/ ARP bolts, 4.280 bore. Block will be fully deburred and blended, all oil passages inspected, blended and polished where necessary. Cyls will recieve ex valve notches, int. notches enlarged and blended.
    *Eagle 4.25 forged crank...this was the third crank I looked at before I found one I would keep. First was a Probe...it had a flaw in one of the radii that showed up in wet mag. 2nd crank was an Eagle which the machining was lousy so it was sent back, and the third was finally acceptable.
    *Probe SRS forged flat tops that should give around 8.5:1
    *Probe forged H beam rods
    *Hellfire rings
    *Clevite race series bearings and Durabond cocated cam bearings
    *Rollmaster billet timing set
    *Romac SFI steel balancer
    *Canfield 310cc/ 119cc CNC chamber heads. Will hone guides, valve job and bowl blend in house. Ports will remain as cast. Heads will be flowed at Lesco's before ordering cam.
    *ARP head studs
    *Cometic gaskets
    *Chris Straub custom hyd. roller cam, lifters and matching valve springs. Springs are non-brand name super-clean Pacalloy wire.
    *REV stainless 2.25"/1.88" severe duty valves
    *Custom length 3/8 pushrods
    *Ti retainers
    *Crane Gold rockers and YTBD stud girdle.
    *Stefs aluminum wet sump pan with their oil pump and pick up assy. Pump is Melling M77hv.
    *Chromoly oil pump shaft
    *BDS polished 871 blower kit set up with 5-8lbs boost.
    *Holley 850 DP carbs
    *MSD Pro Billet w/ Crane Hi Fire 6 ignition.

    That's the basic rundown of parts. Shold be a nice engine when we're done.
    Stay tuned.
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

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    Hey Scott, the motor you're building is really close to the motor I have in my Stealth, but with a just a few differences.

    Mine:
    Mark IV-2bolt converted to 4 bolt 4.280 bore
    Callies Dragen Slayer 4.250 crank/ internal balance w/Pro Race Blower duel key Balancer
    Eagle 6.385 rods
    SRP -3cc flat top pistons
    Dart Pro1 345cc/119cc chamber
    Comp Roller Rockers
    Crane Solid roller cam/ Joey Grose grind
    Crower Extreme Duty .904 solid Roller lifters
    BDS polished Stage II 8-71 Blower
    Holley HP 830's worked over by Performance carbs
    MSD Ignition

    It will be intresting to see your results. I will post up dyno results to compare the two motors later. Looks good Scott.


    Moose

  11. #9
    058
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    Whats the story on the FE block in the background?

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    Senior Member Jim W's Avatar
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    Hey Scott,

    what made you go with the BDS blower over another brand????

    I will be needing a 8-71 in the not too distant future. New or used if someone has a used one to sell.

    Just curious as to why you went BDS.


    Be good, Jim

  13. #11
    steelcomp was here
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    Quote Originally Posted by Jim W View Post
    Hey Scott,

    what made you go with the BDS blower over another brand????

    I will be needing a 8-71 in the not too distant future. New or used if someone has a used one to sell.

    Just curious as to why you went BDS.


    Be good, Jim
    Nothing other than that's what my supplier had good prices on.
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

  14. #12
    steelcomp was here
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    Quote Originally Posted by 058 View Post
    Whats the story on the FE block in the background?
    LOL...good eye, 058. That's just a '67 390 I'm buiilding for my '68 3/4 ton utility truck. Nothing special, just a good utility engine. If there's any interest, I'll do a thread on a basic FE rebuild.
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

  15. #13
    steelcomp was here
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    Quote Originally Posted by Moose View Post
    Hey Scott, the motor you're building is really close to the motor I have in my Stealth, but with a just a few differences.

    Mine:
    Mark IV-2bolt converted to 4 bolt 4.280 bore
    Callies Dragen Slayer 4.250 crank/ internal balance w/Pro Race Blower duel key Balancer
    Eagle 6.385 rods
    SRP -3cc flat top pistons
    Dart Pro1 345cc/119cc chamber
    Comp Roller Rockers
    Crane Solid roller cam/ Joey Grose grind
    Crower Extreme Duty .904 solid Roller lifters
    BDS polished Stage II 8-71 Blower
    Holley HP 830's worked over by Performance carbs
    MSD Ignition

    It will be intresting to see your results. I will post up dyno results to compare the two motors later. Looks good Scott.


    Moose
    Thanks Moose...engines are real close indeed. I figure I'll get to the dyno sometime in March. Should be a real good comparison.
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

  16. #14
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    Quote Originally Posted by steelcomp View Post
    I'll do a thread on a basic FE rebuild.
    I would love to see that Scott!...

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