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Thread: Big power on built mark viii block?

  1. #31
    Join Date
    Nov 2002
    Location
    St. John, IN
    Age
    45
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    14,251
    Then research boosted cars locking the 2nd ring on high hp applications. LSx engines go all the way to .030. But what do I know


    Sent from my iPhone using Tapatalk

  2. #32
    Join Date
    Oct 2010
    Location
    4 miles from insanity and 2ft from broke!
    Posts
    9,559
    There is no set ring gap spec on a Blown Modular motor , it depends on what type of rings are used be it stainless , moly , or cast rings , and also what type of piston forged , hyper , or cast , and compression ratios also play a role as well.
    04 MERCURY MARAUDER build date:02/11/04
    ITS ALIVE !!!!!!!!

    STAY TUNED!!!!!!!!!!

    **WHIPPLE 4.0L CRUSHER!**0000 (FOR NOW) RWHP

    VISIT MY GARAGE FOR A FULL LIST OF MODS

  3. #33
    Join Date
    Sep 2008
    Location
    USA
    Posts
    2,428
    Quote Originally Posted by minimarine09 View Post
    What about the heads? I was reading the b heads are better for boost while our heads ( c heads) are better for low end / mid range n/a. Any input on that?
    Unless you are John Mihovetz B heads are basically useless. C heads are a much better design for 99.9% of applications, especially for anything that is street driven.
    Ex Panther Owner

  4. #34
    Join Date
    Feb 2017
    Location
    Tampa, FL
    Posts
    177
    Quote Originally Posted by MOTOWN View Post
    There is no set ring gap spec on a Blown Modular motor , it depends on what type of rings are used be it stainless , moly , or cast rings , and also what type of piston forged , hyper , or cast , and compression ratios also play a role as well.
    This^^^^^

    Quote Originally Posted by massacre View Post
    Unless you are John Mihovetz B heads are basically useless. C heads are a much better design for 99.9% of applications, especially for anything that is street driven.
    Thanks I figured, after seeing how cheap they sell for! Lol

  5. #35
    Join Date
    Jun 2011
    Location
    Northeast OH
    Posts
    7,999
    Dont forget if you are planning a 700+ motor, you are going to need a better trans. stock wont last, and while at it, should upgrade axles.
    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

  6. #36
    Join Date
    Jan 2003
    Location
    Near Knoxville TN
    Age
    67
    Posts
    10,717
    Quote Originally Posted by RubberCtyRauder View Post
    Dont forget if you are planning a 700+ motor, you are going to need a better trans. stock wont last, and while at it, should upgrade axles.
    I sure wish we could get a bolt-in 9" rear end.
    Thanks to Darrin @ BC Automotive:
    $1800 and it was worse than when he started!

    Brian (FordNut) FPG # 1458 of 7838
    03 MM 300A (Lotsa mods, 130k mi) was 303rwhp/318rwtq N/A
    then 476/410 D1SC ProCharged on stock block
    then 660/555 D1SC PC on 5.3 wet sleeved Teksid alum big bore stroker
    then 365/369 N/A on 5.3 wet sleeved Teksid alum big bore stroker
    Now 751/617 3.4L Whipple on 5.3 Boss5.0 iron big bore stroker

    03 MM 300B Silver (Mostly stock, originally wife's car, 370k mi) FPG # 7053 of 7838 or 49 of 417 SB
    03 MM 300B Silver, Stock, wife's next one, 136k mi FPG # 7134 of 7838 or 89 of 417 SB
    04 MM Silver, Stock, on standby 85k mi, FPG # 1212 of 3214 or 432 of 997 SB
    01 F150 longbed
    01 F150 shortbed
    00 F150 4x4 stepside
    01 F150 4x4 7700
    68 Stang FB (70 351C 4V, 4 wheel discs, project car)

    Mods listed here (some items not current): FordNut's Mods

  7. #37
    Join Date
    Oct 2010
    Location
    4 miles from insanity and 2ft from broke!
    Posts
    9,559
    Quote Originally Posted by FordNut View Post
    I sure wish we could get a bolt-in 9" rear end.
    Its really not that difficult to Fab/mod one to fit the Marauder , mines will be in this summer
    04 MERCURY MARAUDER build date:02/11/04
    ITS ALIVE !!!!!!!!

    STAY TUNED!!!!!!!!!!

    **WHIPPLE 4.0L CRUSHER!**0000 (FOR NOW) RWHP

    VISIT MY GARAGE FOR A FULL LIST OF MODS

  8. #38
    Join Date
    Jun 2011
    Location
    Northeast OH
    Posts
    7,999
    member Lifespeed has one in the works ( 9" ford)
    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

  9. #39
    Join Date
    Feb 2017
    Location
    Tampa, FL
    Posts
    177
    The 8.8 can take ALOT of abuse, I don't see a need for a 9 inch , but I guess even 9 inches break in certain conditions.

  10. #40
    Join Date
    Nov 2007
    Location
    San Jose
    Age
    56
    Posts
    2,541
    Quote Originally Posted by minimarine09 View Post
    The 8.8 can take ALOT of abuse, I don't see a need for a 9 inch , but I guess even 9 inches break in certain conditions.
    The worst part about the 8.8 is the awful bearings and c-clip axles.
    Lifespeed

    2004 Silver Birch Marauder 130K miles
    Wilwood Aero6 F, NMDP R brakes, Penske 7500DA shocks, Hypercoil 600lbs F and Grand Marquis R air springs, Addco tubular sway bars, Metco control & Watts, 31 sp axles, Stainless Works cat-back exhaust, Lidio tune, American Racing AR883 9.3" 50mm F 10" 59mm R 20" wheels, Pirelli P-Zero 265/35-20, 275/40-20 tires

    Coming soon: Livernois 5.0L stroker, ADTR/Vortech V2 intercooled SC, Silverfox trans and Circle D converter

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