Page 1 of 2 12 LastLast
Results 1 to 15 of 30
  1. #1
    Part of the furniture
    Join Date
    Jan 2017
    Location
    Nth Qld
    Posts
    824

    Default should i go 355 and where to get cheaper kits

    Hi
    Stripped Red 308 TH400 block
    bores not machined properly and worn poorly .030 over
    rods .005 inch worn oval basically
    conrod bearing shells worn real bad in a very poor pattern
    crank ok but needs polish

    To go 355 or not ,what are the cheaper ""stroker kits "
    This is only going to be mild re stock heads to start with then eventually vn heads

  2. #2
    been here .......too long Smitty2's Avatar
    Join Date
    Mar 2007
    Location
    bayside Melbourne
    Posts
    9,444

    Default

    .. try one of these

    I helped a mate throw one of these together 2-3 years ago
    in a street driven VH wagon (bloody quick wagon)

    and a mate of his then got one for his early bird.


    Holden 355 (EFI) HP1 performance stroker engine kit up to VS-series 1 - Port City Engines


    ps.. don't forget your block will need clearancing for a stroker
    __________________________________
    ONE OF THE Aussie V8 MODERATOR/ADMIN TEAM
    Never late in an AussieV8!
    Club circuit racing...the best fun you can have with your pants on

  3. #3
    Part of the furniture
    Join Date
    Jan 2017
    Location
    Nth Qld
    Posts
    824

    Default

    HI
    All ,what is the combustion chamber size early red 308 and late VN . Are Both 61 cc ??

  4. #4
    casual poster Willie's Avatar
    Join Date
    Jun 2015
    Location
    Bateman Western Australia
    Posts
    233

    Default

    56 cc for standard red & blue heads.

  5. #5
    casual poster
    Join Date
    Feb 2017
    Location
    Melbourne
    Posts
    315

    Default

    VN-VS V8 efi heads are generally classed as 62cc

    VT V8 60cc

    Mind you everyone has probably heard of a set a cc either way due to factory tolerances.

  6. #6
    been here .......too long Smitty2's Avatar
    Join Date
    Mar 2007
    Location
    bayside Melbourne
    Posts
    9,444

    Default

    Quote Originally Posted by Willie View Post
    56 cc for standard red & blue heads.
    naah... best is 58cc usually from my experience
    sometimes higher up to 61 given the usual factory tolerances

    just had a std set of VLs early style done up
    std unmodded was 61 as measured in the shop
    ( I asked before they got into them)
    .. now 58 after machining
    __________________________________
    ONE OF THE Aussie V8 MODERATOR/ADMIN TEAM
    Never late in an AussieV8!
    Club circuit racing...the best fun you can have with your pants on

  7. #7
    Do you ever leave? paulzig's Avatar
    Join Date
    Oct 2008
    Location
    Gold Coast
    Posts
    15,377

    Default

    Buy the Scat crank, precision sell them .. Get the chev rod crank whatever you do, it doesnt cost that much more to get a set of 5.7 or 6" chev rods rather than resize and buy rod bolts for the holden ones...

    Then its just pistons.. JE forgies are close to a grand so for a not so cheap kit probably closer to $2500, you can buy the hyper piston kits for $1800 odd

  8. #8
    Part of the furniture
    Join Date
    Jan 2017
    Location
    Nth Qld
    Posts
    824

    Default

    hi
    Pardon the dumb questions but really not familiar with 355

    Whats the crank referred to as Holden chev rod crank ??

    Don`t care if I use stock rods . Question really is are hyperutectic pistons widely for all rod lengths . Are the pistons for stock rods cheaper than the chev rod .pistons .

    Is there xtra machining costs pistons /rods more with 1 set up over another ???. [I accept there is block clearance to be done] . Whats the best setup for minimal block clearancing .


    Does not matter what conrod H or I beam ?????. Is there one that offers better clearance over another in regards to a Holden . Would a plain 3/8 bolt I beam be ok or do I need a stroker clearanced ??? Would upgrading to a 7/16 bolt cause issues ??. Both upgrades is what u would do in a chev .


    regards

  9. #9
    Part of the furniture Deuce.'s Avatar
    Join Date
    Sep 2014
    Location
    Meremere Dragway - often!
    Posts
    969

    Default

    Quote Originally Posted by 46Crab View Post
    VN-VS V8 efi heads are generally classed as 62cc

    VT V8 60cc

    Mind you everyone has probably heard of a set a cc either way due to factory tolerances.
    All the efi heads I've measured were 63/64 which I thought 64 eas stock.
    I thought 58 for VT (never measured one though)

  10. #10
    casual poster
    Join Date
    Feb 2017
    Location
    Melbourne
    Posts
    315

    Default

    Quote Originally Posted by Deuce. View Post
    All the efi heads I've measured were 63/64 which I thought 64 eas stock.
    I thought 58 for VT (never measured one though)
    You may be spot on mate.

    Iíve had three sets of VNís and they were all within 1/2-1 cc of 62cc standard.

    Anyway, itís fair to say the VTís are a couple of ccís smaller in standard and have a heart shape combustion chamber.

    There may even be a thread on here somewhere of the actual sizes from some of the gurus.

  11. #11
    Do you ever leave? paulzig's Avatar
    Join Date
    Oct 2008
    Location
    Gold Coast
    Posts
    15,377

    Default

    Budget around $2500 for the Scat crank, chev rods, forged pistons, bearings and some odds and ends... Otherwise stay stock stroke 308 for longer and save up $$..

  12. #12
    Part of the furniture
    Join Date
    Jan 2017
    Location
    Nth Qld
    Posts
    824

    Default

    Quote Originally Posted by swampy View Post
    hi
    Pardon the dumb questions but really not familiar with 355

    Whats the crank referred to as Holden chev rod crank ??

    Don`t care if I use stock rods . Question really is are hyperutectic pistons widely for all rod lengths . Are the pistons for stock rods cheaper than the chev rod .pistons .

    Is there xtra machining costs pistons /rods more with 1 set up over another ???. [I accept there is block clearance to be done] . Whats the best setup for minimal block clearancing .


    Does not matter what conrod H or I beam ?????. Is there one that offers better clearance over another in regards to a Holden . Would a plain 3/8 bolt I beam be ok or do I need a stroker clearanced ??? Would upgrading to a 7/16 bolt cause issues ??. Both upgrades is what u would do in a chev .


    regards
    Please can people share there experiences by answering the questions above Cheers.

    The cost is relative with I beams /hypers /cast crank cannot be that expensive . In the original engine pistons/ rods are toast .
    Trying to come up with 355 on a tight budget .

  13. #13
    casual poster
    Join Date
    Jan 2012
    Location
    Melbourne
    Posts
    268

    Default

    Quote Originally Posted by swampy View Post
    hi
    Pardon the dumb questions but really not familiar with 355

    Whats the crank referred to as Holden chev rod crank ??
    To use holden rods: Holden journal stroker crank. To use chev rods: chev journal crank. Scat do both and are generally the same price


    Don`t care if I use stock rods . Question really is are hyperutectic pistons widely for all rod lengths . Are the pistons for stock rods cheaper than the chev rod .pistons .
    Pistons to suit the holden journal crank are VERY difficult to come across - precision international supply them but they're not always available. They discontinued production a while ago but they just did a special production run back in april last year (I called them to check availability). However, you don't get options for dish volume etc. You use a chev 383 piston which are widely available in different brands, cast/forged etc. with chev journal crank and appropriate rods.

    IF you decide on holden journal, don't use the 308 rods - use 304 'spike' rods.


    Is there xtra machining costs pistons /rods more with 1 set up over another ???. [I accept there is block clearance to be done] . Whats the best setup for minimal block clearancing .
    Minimal block clearancing - go with I beam rods. You'll need to have the rotating assy balanced. The chev components and chev journal crank may mean you need heavy metal added when balancing (moreso than the holden journal setup with factory rods) which may mean a little extra money for balancing in comparison. If you do go with the holden journal crank and stock rods you will still need to clearance unless you use a factory stroker clearanced block (they're only a very small notch anyway - doesn't take long to do on a 308 with a die grinder)


    Does not matter what conrod H or I beam ?????. Is there one that offers better clearance over another in regards to a Holden . Would a plain 3/8 bolt I beam be ok or do I need a stroker clearanced ??? Would upgrading to a 7/16 bolt cause issues ??. Both upgrades is what u would do in a chev .
    I can't offer much info about rod choice, but really depends on what rpm range you expect it to have. If going H beams and larger rod bolts I'd say you're best to look into a 4 bolt main conversion - the mains will likely give you trouble before arp bolts.

    regards
    On a very tight budget if you're not worried about specs you can do a holden journal stroker relatively cheap. BUT when it comes time to rebuild next time it can be a little more difficult as parts will be harder to get. The Chev setup isn't much more expensive anyway and parts availability is great, you're using all new parts and pistons are generally fully floating too.
    Last edited by cbw_09; 17-01-2019 at 11:43 AM.

  14. #14
    Do you ever leave?
    Join Date
    Oct 2008
    Location
    NZ
    Posts
    2,856

    Default

    On a budget Scat crank is hard to beat. Holden journal balances up better than chev journal and can save some $ if you have good to go holden rods. If not scat I-beams require the least clearancing. Consider 5.625" holden rods versus aftermarket chev 5.7" combined with piston compression height to get deck height to where you want it. I went chev journal with 6" eagle H-beams and forged SRP forged pistons, (383 chev) comp height 1.125". 0.020" deck skim to get zero deck. 2K for crank, rods, pistons and rings. + clearancing balancing and machining. HTH

  15. #15
    Part of the furniture
    Join Date
    Jan 2017
    Location
    Nth Qld
    Posts
    824

    Default

    hi
    scat crank cast
    scat Pro I beam stroker clearance rod 7/16 bolts 5.7 long [ desirable for 6 inch ]

    Holden Deck height ??? The deck on a Holden is shorter than chev ??

    The final rod choice/length will depend on what pistons compression height I can get .


    Any one help for The hyperutectic range ..Whats available ???


    Looking for around 10:1 ---10.3:1 compression Will be using Holden red heads to start .

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Why are El Camino's cheaper than Holden Tonners?
    By Jimmy_Recard in forum Chevrolet
    Replies: 0
    Last Post: 03-09-2016, 11:03 AM
  2. cheaper than a divorce I suppose.
    By metalhead_seadog in forum Members Lounge
    Replies: 3
    Last Post: 04-09-2010, 02:05 AM
  3. American cars getting cheaper?
    By PASSNBY in forum Members Lounge
    Replies: 2
    Last Post: 16-11-2008, 12:01 PM
  4. Decent cheaper power boost options (VR)
    By Syko in forum 6 & 4 Cylinder discussion
    Replies: 0
    Last Post: 29-03-2007, 11:49 PM
  5. Cheaper than a Harley and twice the fun!
    By 1BADSS in forum Members Lounge
    Replies: 6
    Last Post: 23-04-2006, 06:00 PM

Posting Permissions

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