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Thread: new heads and muffler on my 86 k10!

  1. #1
    Join Date
    May 2008
    Location
    verona, virgina
    Posts
    626

    new heads and muffler on my 86 k10!

    well i put the 350 in the truck back in october of 09 but the wife wanted it done cheap and fast so i reused my 601 heads from the old 305 with hopes that with a spring and valve seal change id be ok.....wrong. since ive had it together with the new setup ive had nothing but problems with smoking but could never figure it out. i want to change the valve springs one day and found that i had some valves not seating so that made me decide to get my spare set of 416 heads redone. i had them shaved .020 new rocker studs i had my springs i bought that are good to .550 lift put in and a 3 angle valve job. the pistons in the motor are 26cc dish thats why im using such a small cc head btw :p used felpro shim gasket thats .016 thick and sprayed two coats of copper sealer on them and finished up with new felpro headbolts which i recomend! i also installed a performer rpm intake that i took off the motor from one of my cars when i sold it :p. the cam in the shortblock is the eglin equivilent of the summit 1103 cam .442/.465 214/224 112lsa the truck has long tube headers 2 1/2 y pipe into a single 3in exhaust with a 3in in two 2 1/2 out cherry bomb vortex muffler under the bed. the truck also has a summit racing th350 trans and a 2800stall. i still need to time it and put the vac gauge on the carb but it runs alright to get me around for now.

    http://s285.photobucket.com/albums/l...t=MOV01254.mp4
    Last edited by screamin86; 08-08-2010 at 11:49 PM.
    03 yukon xl:intake, longtubes ory,performabuilt lvl2,circle D 278,tune, tint, lt1 fans
    92 z28: lb9 air foil vette servo magnaflow catback adjustable pan hard rod Lcas lcarbs
    86 trans am: lm7 hot cam th350 3500 stall

  2. #2
    Join Date
    Dec 2007
    Location
    Maui, HI
    Posts
    571
    Video link fail.... but the info sounded nice.

    Edit: nice quick fix. Dude that thing sounds like a diesel and it starts up much better than the last vid you posted in the winter time. Good stuff.
    Last edited by Maui4x4; 08-08-2010 at 11:52 PM.
    99 Silverado 1500 4x4 RC 4.8
    4L60E, 3.73, Homemade CAI, 92oct Quik tuned,
    08 Tahoe radiator/fans, Dumped exhaust... summed up one loud pig caller |[226K! on odometer|

  3. #3
    Join Date
    May 2008
    Location
    verona, virgina
    Posts
    626
    sorry about that link fixed
    03 yukon xl:intake, longtubes ory,performabuilt lvl2,circle D 278,tune, tint, lt1 fans
    92 z28: lb9 air foil vette servo magnaflow catback adjustable pan hard rod Lcas lcarbs
    86 trans am: lm7 hot cam th350 3500 stall

  4. #4
    Join Date
    Dec 2007
    Location
    So Cal
    Posts
    527
    Very Nice Sounds Strong

    2002 Chevy Silverado LT 5.3L z71 ECSB, Fully Built DMC 4L65e, Transgo 4L65E .500 Boost Valve, Transgo Shift Kit, Billet 1st Gear Servo, 2nd Gear Sonax Super Hold Servo, 4th Gear Billet Servo, Rebuilt 10 Bolt w/ OEM G80 and 3:73's, Dumped Single 3" Spintech Muffler, 3" E-Cut Out

  5. #5
    Join Date
    May 2008
    Location
    verona, virgina
    Posts
    626
    Thanks it still needs some tuning and ione of my cooler lines sprung a leak on the test drive so I have to address that yet. It needs gears badly though. The 3.42s aint cuttin it.
    03 yukon xl:intake, longtubes ory,performabuilt lvl2,circle D 278,tune, tint, lt1 fans
    92 z28: lb9 air foil vette servo magnaflow catback adjustable pan hard rod Lcas lcarbs
    86 trans am: lm7 hot cam th350 3500 stall

  6. #6
    Join Date
    May 2009
    Location
    warner robins ga
    Posts
    19
    nice

  7. #7
    Join Date
    May 2008
    Location
    verona, virgina
    Posts
    626
    also gained some mpg lol went from 9mpg tuned to 15mpg untuned lmao. but ive also got the fuel ps1 turned down to 3.5psi
    03 yukon xl:intake, longtubes ory,performabuilt lvl2,circle D 278,tune, tint, lt1 fans
    92 z28: lb9 air foil vette servo magnaflow catback adjustable pan hard rod Lcas lcarbs
    86 trans am: lm7 hot cam th350 3500 stall

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