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  1. 8

    1992 C2500 Silverado Ext Cab Solo Baric L7 12 underseat enclosure

    What do you guys think of using a shallow design sub (like the JL 12TW3-d4 Here ) and putting it in a box behind the extended cab rear seat? I measured the space, it'd be tight but I think it'd fit. Would be nice to leave the space under the seat open.
  2. 8

    Small Turbo on stock L29 454?

    My machinist talked me into ditching the genV and going with a MarkIV block (stronger) and 049 heads for better airflow in the higher RPMs, although my cam designer has shown in his software that the peanut port heads make great power and torque down low. I'm going with a stroker 496 for...
  3. 8

    454 stroked to a 496

    After reading your thread a while back, I asked a cam designer I know (Lee Atkinson) to run these scenarios through his software last week. PP heads actually make MORE torque and about the same HP everywhere under ~3800RPM. It wasn't a lot more, only about 10ft lbs, but it was definitely...
  4. 8

    454 stroked to a 496

    **** sorry, I missed that, you're correct. Those are good heads on the Gen6 from everything I've read.
  5. 8

    454 stroked to a 496

    Hey Bwear I am literally in this exact thought process, planning out a rebuild of my '94 454. Machinist is trying REAL hard to talk me into the stroker kit because it not only makes more torque/hp but makes a nice and tidy "square" engine, one of the reason the 8.1 was such a good platform (I...
  6. 8

    93 K2500 Suburban 454 Holley Sniper Upgrade

    THanks for posting, that is a good explanation of what I have going on. I like how he explained phasing, makes a lot of sense. Good stuff.
  7. 8

    93 K2500 Suburban 454 Holley Sniper Upgrade

    Ahhhhh gotcha. Yeah luckily mine is a manual. Had the NV4500 rebuilt last summer, and put in a custom clutch, getting my drive train setup for a rebuild similar to yours maybe next year, I want to be in that 425hp/550tq range if I can. SO if/when I rebuild this engine I'll keep that diverter...
  8. 8

    93 K2500 Suburban 454 Holley Sniper Upgrade

    ****, maybe I shouldn't try to keep the GM dizzy if it means i need to keep the stock computer? I was just trying to avoid spending the extra $$ on the hyperspark......might be a dumb way to save? Makes sense on all other things. That last sentence has me scratching my head though, where is...
  9. 8

    93 K2500 Suburban 454 Holley Sniper Upgrade

    Sorry one more question: I was going to use my factory dizzy since it's cheaper, just need to buy the cable. Is there a reason you didn't go that route? Holley is probably better, I suppose.... Thanks!
  10. 8

    93 K2500 Suburban 454 Holley Sniper Upgrade

    GREAT thread, this has helped me a lot OP, thanks for posting. Just gathering parts list to put a sniper on my '94 K2500 454. A couple questions: - I read that using an intake with no gap in that center divider that is right below the TB base is bad for your MAP readings. The edelbrock air...
  11. 8

    K2500 8 lug diff: Actuator upgrade?

    Thanks, I'll check it out, might just go with ACDelco to be safe, had one fail on my 20yrs ago way back in the mountains and damn near had to hike out in the snow, no fun at all....
  12. 8

    K2500 8 lug diff: Actuator upgrade?

    Thanks Andy! In your opinion are the Dorman actuators as good as GM units? It looks pretty plastic-y. Hell maybe the GM units aren't even sold anymore?
  13. 8

    K2500 8 lug diff: Actuator upgrade?

    Sorry if this is in the wrong sub-forum, why's this place have so many categories....haha After a lot of googling I can't find clear answers....my '94 K2500 8lug is super slow to engage, old original thermo actuator I'm guessing. I can't determine if this takes the same part as a 1500 half...

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