Why The Gen-V LT Outshines The LS

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swathdiver

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The things with OHC motors is the cost and complexity of repairs and performance mods. The aftermarket has enough trouble dealing with VVT, I can't imagine them mastering higher power Coyote camshafts better than the millions Ford already spent save for the gains you get ignoring emissions requirements that they have to follow.

Then there's the cost. 1 cam for an LS or LT versus 4 for an OHC V8. Plus the chain and all the ancillary equipment. No thanks.

We can modify our LS engines to run reliably and for a long time at about 650 horsepower at the flexplate and that'll take a 6,000 pound truck into the mid 12s down the 1/4 mile.

The L84 can be deleted and cammed and supercharged and make maybe 50 horsepower more. Their fuel system is more expensive. I don't know how the performance world is coping with those 8-speeds that so many of them have. We know they are putting 10-speeds in GMT900s.

And that brings up another point, you can have two trucks with the same motor and rear axle ratio. One with a 6-speed and one modded with a 10-speed. That 10-speed truck is going to smoke the 6-speed all day long. That's a better bang for your buck than an LT motor at present.
 
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donjetman

donjetman

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The things with OHC motors is the cost and complexity of repairs and performance mods. The aftermarket has enough trouble dealing with VVT, I can't imagine them mastering higher power Coyote camshafts better than the millions Ford already spent save for the gains you get ignoring emissions requirements that they have to follow.

Then there's the cost. 1 cam for an LS or LT versus 4 for an OHC V8. Plus the chain and all the ancillary equipment. No thanks.
Brett LaSala with his coyote powered Mustang "Snot Rocket", fastest competitor at Sick Week at the moment, fells differently at 5.05 in this video:
 

swathdiver

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Brett LaSala with his coyote powered Mustang "Snot Rocket", fastest competitor at Sick Week at the moment, fells differently at 5.05 in this video:
Pretty cool but don't LSs run the same? It takes a lot of dollars to make 3,000 horsepower and run that fast.

I just googled a Borowski engine making 3K horses for $73K.
 

j91z28d1

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Pretty cool but don't LSs run the same? It takes a lot of dollars to make 3,000 horsepower and run that fast.

I just googled a Borowski engine making 3K horses for $73K.
can't go that fast or make that power with a ls, even with a aftermarket block. not enough head clamping. they pop head gaskets and fire etch blocks long before that. LT has the same amount of studs. might turn out to he a little better if decks are thicker but not enough to matter matter currently. one of if not the fastest stick shift car runs a Gen 1 small block for the extra head studs it has. by then normal people go big old school big block chevy or maybe even hemi?

what that green mustang is doing has kinda wild.
 

swathdiver

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can't go that fast or make that power with a ls, even with a aftermarket block. not enough head clamping. they pop head gaskets and fire etch blocks long before that. LT has the same amount of studs. might turn out to he a little better if decks are thicker but not enough to matter matter currently. one of if not the fastest stick shift car runs a Gen 1 small block for the extra head studs it has. by then normal people go big old school big block chevy or maybe even hemi?

what that green mustang is doing has kinda wild.
Well, that's exactly what Borowski is selling, a 3,000 horsepower LSX.
 

swathdiver

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Foggy

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I learned something from my machinist last week about the
new 6.6 L Gas DI engines that the newer (2021+?) trucks..
The 's etc.. Have...
Because I thought about building one.. They have a great block
and a sweet 3.90 stroke...BUT
A new camshaft is over $1200+ YIKES
I'm old school and think that pre-covid LS3 cams for $400 was
way to F'n high (they are over $500+ now )
And even an old school SBC roller cam is 450-550 OUUCH
as I'm rebuilding one of my 421 sbc engines and "thinking"
about a cam change
 

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