John Bzdel's LS7/T56 1988 Monte Carlo SS

680 RWHP stock short block LS7 on 92 octane pump gas!

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Stock as installed Modified with Sheet metal intake

 

Current Vehicle Description:

      Black original paint/Grey Interior

       Goodmark cowl induction hood

Engine: Click here for the original LS1 swap journal.  The LS7 was dropped in during the spring of 2006.

      Stock GM Z06 LS7 short block

      0.040 Cometic MLS head gaskets (11.79 SCR, 8.84 DCR)

      GM Stock ignition coils and plug wires, NKG TR6iX spark plugs gapped at 0.040

      Stock GM LS7 heads hand ported by Greg Good

400+ CFM intakes

250+ CFM exhausts

66cc combustion chambers

277cc intake runners

PAC 1.55 Springs 640/240lbs

      Solid Roller Cam by Bullet Racing Cams (click here for idle link)

258/273 @ 0.050; 112 + 4 LSA, installed 108.5

0.781 intake / 0.747 exhaust

Isky EZ-roll SR lifters

Smith Brothers 3/8 pushrods

Jesel 1.8RR

C5R Timing chain

Crower adjustable Cam gear

      Beck Sheet metal intake

Nick Williams 102mm throttle body

Injector Dynamics ID1000 injectors

LPE 100mm MAF

4 diameter inlet tubing with K&N conical filter

      Exhaust system

Triple stepped headers 1-7/8 to 2" to 2-1/8" primaries (round port, not D-port!)

27 primary length with 4 diameter merge collectors

4 diameter head pipe with 4 diameter X-pipe

Full 4 exhaust w/MagnaFlow 12909 3-1/2" mufflers and 3-1/2 tailpipes

      Meziere electric water pump

      ATI 10% under drive crank pulley

      Elite Engineering catch can

      2.5 BAR E38 PCM tuning

Drive-train:

      RPS BC Clutch and Aluminum flywheel

      T-56 2.66 1st gear transmission

      Moser 35 spline Tru-trac 12 bolt 4.11 rear end

Suspension:

      Modified C5 spindles & 13" front disc brakes

      4th Gen F-body 12 rear disc brakes

      2" drop via G5 Suspension Package up front and 2 drop rear coils

      AFCO front shocks and rear coilover adjustable shocks

      Boxed lower rear control arms with BMR lowering brackets & 1LE bushings

Wheels/Tires:

      Rear 17" x 10" Custom widened/Chromed Momo Arrow wheels with Dunlop P315/35xZR17 tires

      Front 17" x 8.5" Chromed Momo Arrow wheels with Dunlop P275/40xZR17 tires (for tire fitment data follow this link)

Performance:

      Dyno stock: 487 RWHP SAE Corrected Click here for dyno sheet

      Dyno modified: 680 RWHP SAE Corrected Click here for dyno sheet Click here for Dyno video

      Track with stock LS7: 11.52 @ 121.66 MPH (Hoosier QTP DOT street tires through full exhaust) Click here for video

      Track with modified LS7: Summer 2013!


Monte Carlo Links

Monte Carlo SS.com - One of the ultimate information resource sites with an awesome message board dedicated to the Monte Carlo enthusiast.  A "must see" site!

LSx useful Links

LS1tech.com - One of the most informative sites on the Internet for the GEN III & GEN IV motors

LS1tech.com Conversions Forum Message Board - A direct link to the LSx conversions message board

This page was last updated 07/04/13

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2013 by John Bzdel