Register

If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Follow us on Facebook Follow us on Twitter
Page 1 of 23 12311 ... LastLast
Results 1 to 10 of 226
Like Tree106Likes

Thread: 665 inch BBC for LaveyCraft NuEra29 build

  1. #1
    Registered
    Join Date
    Jul 2016
    Posts
    84

    665 inch BBC for LaveyCraft NuEra29 build

    It's not everyday I get to play at this level. I've been collecting parts for a Marine 665 inch *naturally aspirated* BBC. That's 4.600" bore x 5.000" stroke. The Winberg billet crankshaft just showed up today I also have a photo of the Crower billet 7.325" long rods next to a stock length Manley rod for comparison. Custom RaceTec pistons, etc.

    This is for John Mosetti's (BUP) 29' LaveyCraft NuEra that is currently being built. If you haven't seen the build on the boat, it's completely awesome. Follow this link: http://www.laveycraft.com/construction-of-29-nuera

    I'm going to photo document the assembly of this engine as I go so you can see how I do it. That doesn't mean I'm right or wrong, it's just how I do it. I won't get going on this until after PRI sometime, but I thought I'd share the start of it.

    The very first thing I did was pick out a block. I decided on a Dart Big-M pro. The reason for this was that I could get it in an 11.1" deck, it already came with 55mm cam bearing bores, .903" lifter bores, steel caps, and it has room for a 5" stroke with the spread pan rails and .600" raised camshaft position.

    The next thing I did was to select a ring set. Why were rings #2 you ask? I needed to know the ring width and radial depth before I could order pistons. I also had to decide on a cylinder head so the correct valve angles, location, and spacing would be known. Once we figured out the rings (.043x.043x3mm in this case) I ordered the pistons. I am shooting for 9.5:1 compression or a tick more so I ordered the pistons with a 24cc dish figuring a 119cc combustion chamber. Once I knew the pin height on the pistons I could order the connecting rods. 11.1" deck - 1.27" pin - 2.5" (1/2 stroke) -.005" (piston to deck) = 7.325" rod.

    After the block, rings, pistons, and rods were delivered and bearings were mocked up in the block, everything was checked dimensionally and weighed. The crankshaft was ordered to bob-weight . I would have ordered it to a finished pin size rods and mains but that was an extra 8 weeks (Winberg had a semi-finished 5" stroke partially finished) so I may have to play with bearing shells to get the clearance I want.

    At the same time, the Brodix BB3XO-332 cnc oval port heads are at Chad Speier's (Speier Racing Heads) place getting worked over to meet the requirements that I have for this engine. That meant a camshaft had to be ordered so I knew the peak lift and then the valves, springs, retainers, locks, and locators were also ordered.

    As you can see, one little decision affects the entire package. It's best to write it all down on paper before you ever order a single part.













    SB, Gimme Fuel, stimleck and 4 others like this.

  2. #2
    Registered
    My Boats:
    24' Baja
    Join Date
    May 2007
    Location
    Lexington, KY
    Posts
    890
    Cool, looking forward to following this. That crank is a work of art.

  3. #3
    Platinum Member Platinum Member 14 apache's Avatar
    My Boats:
    Starchaser 87 Apache 41 Warpath
    Join Date
    Apr 2005
    Location
    Northport N.Y.
    Posts
    1,669
    Nice build but think you need more cylinder head for the cubes.
    That thing will make a bunch of torque.

  4. #4
    Registered
    Join Date
    Jul 2016
    Posts
    84
    Quote Originally Posted by 14 apache View Post
    Nice build but think you need more cylinder head for the cubes.
    That thing will make a bunch of torque.
    The goal is 900hp. These heads will go there with ease.

  5. #5
    Registered
    My Boats:
    Laveycraft
    Join Date
    Apr 2007
    Location
    AZ
    Posts
    112
    This is gonna be a badass build!

    But an engine thread on OSO, at the beginning of fall? I'm predicting 300 pages plus...
    stimleck and SB like this.

  6. #6
    BUP
    BUP is offline
    Registered
    My Boats:
    2017 - 29 Laveycraft Custom Build & SHE's Going to be a Bad Boy. www.laveycraft.com
    Join Date
    Jul 2011
    Location
    Ft. Worth TX
    Posts
    5,778
    hopefully it all good popcorn ^^^^ haha
    class6 and SB like this.

  7. #7
    Registered
    Join Date
    Jul 2016
    Posts
    84
    Quote Originally Posted by Bowtiepower00 View Post
    This is gonna be a badass build!

    But an engine thread on OSO, at the beginning of fall? I'm predicting 300 pages plus...
    As exotic as this piece is it's going to take some time to get it together correctly. I'm going to do my best at a photo documentary and post here as the build goes along. I hope to be on the dyno with it before the end of February. Really our goal is to duplicate the performance of something like a Teague 825 but without the supercharger.

  8. #8
    Platinum Member Platinum Member 14 apache's Avatar
    My Boats:
    Starchaser 87 Apache 41 Warpath
    Join Date
    Apr 2005
    Location
    Northport N.Y.
    Posts
    1,669
    Quote Originally Posted by 900HP View Post
    The goal is 900hp. These heads will go there with ease.
    How big of a camshaft you going to run? I ran the 351xo brodix that did run 900hp they make great power. How much work is chad going to do to them? Thanks

  9. #9
    Registered
    Join Date
    Jul 2016
    Posts
    84
    Quote Originally Posted by 14 apache View Post
    How big of a camshaft you going to run? I ran the 351xo brodix that did run 900hp they make great power. How much work is chad going to do to them? Thanks
    Cam is 267/271 @ .050", .775" ish lift, and 114 LSA.

    Chad is doing whatever he needs to

  10. #10
    SB
    SB is online now
    Registered
    Join Date
    Nov 2004
    Location
    I snowmobile because the voices in my head tell me to.
    Posts
    7,618
    BUP, have your balls started to grow since this started ?


Page 1 of 23 12311 ... LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
OSO Sponsor
OSO Advertisers


OSO Directory
All times are GMT -5. The time now is 04:35 PM.
Powered by vBulletin® Version 4.2.0
Copyright © 2017 vBulletin Solutions, Inc. All rights reserved.
Search Engine Optimization by vBSEO 3.6.1
Original Poster In Postbit provided by Original Poster In Postbit v1.0.0 (Free) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Copyright 2011 OffShoreOnly. All rights reserved.