Speed Secrets: 5.3 LM7 Cam and Intake Test! How good is the TBSS manifold??

In this episode of Speed Secrets, Richard takes a look at what a cam swap (54-454-11) and FAST LSXRT intake manifold can do for power!

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[Compcams]

Have questions about cams, valvetrain, or EFI for your vehicle? Give us a call at 800-999-0853 and we can help you choose the perfect cam/valvetrain for your setup or goals! Don't want to talk to someone? Check out the Cam Recommendation form on our website!

[hotroda.]

Richard I believe you are supported by Comp Cams and nothing against that by any means. Roger Vinci owner/engineer and flat out LS dedicated camshaft designer makes the world's best camshaft profiles for LS engines. I would love to see you test a few of his camshafts and compare them to the dyno mules you have tested before. "Vinci Hi Performance" Thank You Richard

[casebogue]

This guy is the Jeff cavaliere of engines

[limabravo]

Mr Holdner,
These are great videos, good real world info. Something I wanted to bring to your attention is the 615-183 Ls truck intake offered online. This manifold seems to be a doorman copy of the fast lsxrt and the no name Chinese companies have copied the doorman copy. In short I bought a brand new intake for $65 that I think your viewers would love to see tested. The generic pn is 615-183

[maxwolthuis]

This man is the hot rod Jesus... going about doing good

[martineza]

I built a LM7 to take the place of my LS1 in my 99 Trans am WS6 216/220 .560 114 lsa LR4 flat top pistons gave me 10.20:1 compression and home ported 862 heads just need a good Dyno tune to take advantage of my setup.

[texasstreettunes]

You should compare the radical ported tbss intake vs the fast see how the curve and power difference looks.

[betosgarage]

Stock lm7 intake & 706 heads are fine . Spend your money on cam kit springs then go forced induction no need for the other stuff

[Nathan-wnmc]

Those are impressive numbers for just a cam swap. Crazy.

[thekameronsmusz]

can you drop a link for evrything needed for this build ex.springs, pushrods, cam

[gloriamaletta]

Watched a video on the old style smallblock 327 and with a good set of heads and a solid roller cam and a single plane intake peak power numbers were very similar l was impressed with the power the old 327 made with the upgrades

[bigdogstreetperformance]

The TBSS intake manifold even though it is 10+ years old is one of the best intake manifolds ever made!

[matthewvarnam]

The power these 5.3 make with just cam and headers is unbelievable.

[akjonblaze]

Funny I randomly came across your video, I was looking at doing my cam and getting SS intake, springs and lifters also timing chain. I have a 04 Avalanche.

[andriosz]

Nice, but you've forgot to mention that this aftermarket intake was loosing power all the way up to about 4500 RPM :)

[Sebastianbartledoo]

i have this same setup except 1 7/8 long tubes and factory truck intake, mine loves 32 degrees of timing. could you tell me how much you ran?

[MrLsracer]

I wonder what these numbers would look like with an l33? I would think with the extra head flow and extra compression that it would be closer to 475 with the tbss and close to 500 with the lsxrt???

[heavytrucks]

I was told my 5.3 could handle a 6.0 vortec heads with the same cam you mentioned in the video. Thanks

[HotRodDave]

I am thinking of putting that cam in my 5.3 Suburban may put a turbo on it later if I get bored

[EGGINFOOLS]

So save your money and keep the SS manifold if you plan on keeping stock heads. More performance over the usable curve. Especially if towing