5.3L SS Cam Option - 400+HP / 400+TQ

Trick Flow / Comp

Package Includes:

• Trick Flow 30602002 Cam - 220/224, .575 lift, 112 LSA

• Trick Flow 21407400 Chromoly Pushrods - 7.4in x 5/16

• Comp 26918-16 Valve Springs - 372lb/in, up to 8000 rpm

• Installed & Tuned

$995.00

NOW Available for the 5.3L!!!  This is the next step beyond the Z06 cam and has the old school lopey cam sound and an 800 RPM Idle - Click on link to the right to listen! >  This is what most guys will want in a street vehicle, but its not too crazy for an offroad car either.  A higher stall converter is recommended for the street.  I run a 3600 stall Yank converter with the 4L60 and a 3200 for the 4L80 and LOVE it on the street.  I would recommend 1800-2000 stall for an offroad application to keep trans temps down and minimize tire spin when crawling.  This will start to push the limits of a 4L60e transmission and internal upgrades are recommended.

This is really the limits of a "street'able" cam in a 5.3L Vortec Truck engine IMO.  The 5.3L just doesn't respond well to larger duration / larger lift cams - the cubic inch just isn't there to utilize it.  The stock heads, intake manifold, and 78mm throttle body just won't flow enough air to make much more HP natural aspirated.  There are bigger cams but they get really temperamental on the street and are made for pure drag racing.  This Trick Flow cam can be driven daily, handles idling moderately well with A/C, electric fans, etc.

To get to 500HP requires changing the heads, intake manifold, throttle body, & injectors.  The price tag on this almost doubles the turnkey price.  My saying is: You can make around 400HP for $4k, but it will cost you almost $8k to make a legit 500+ "street'able" HP natural aspirated and a GM "crate engine" becomes more appealing.

Note:  This is getting into the "extreme" range of cams.  With several variables of all projects, i.e. torque converter stall speeds, transmission upgrades, electric fans, A/C, ring / pinion ratios, etc. some fine tuning may be necessary.  Particularly with idles.  Although I offer free ECM reflashes to all customers, it can get frustrating shipping your ECM back.  I would recommend that you have a local tuner / shop available or at least purchase a second ECM.

Dyno Notes:  The engine started as a stock 2004 5.3L LM7 with 101k miles.  We added the Trick Flow Cam, Comp 918 Valve Springs, and 7.4" Chromoly Pushrods - Besides the Long Tube, Equal Length, 1.75" Primary Headers THAT IS IT!!!  And of course meticulously dyno tuned it.  It was tested with Alternator, PS Pump, and Water Pump running the factory serpentine belt system.  Also factory exhaust manifolds were used.  SAE atmosphere corrections were applied as recorded in our shop.  We tested this engine over several days and varying atmosphere conditions.

Dyno Notes:  The engine started as a stock 2006 5.3L LM7 with 103k miles.  We added the Trick Flow Cam, Comp 918 Valve Springs, and 7.4" Chromoly Pushrods - THAT IS IT!!!  And of course meticulously dyno tuned it.  It was tested with Alternator, PS Pump, and Water Pump running the factory serpentine belt system.  Also factory exhaust manifolds were used.  SAE atmosphere corrections were applied as recorded in our shop.  We tested this engine over several days and varying atmosphere conditions.