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File: pepearmsfolded.png (681 KB, 600x900)
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I REALLY want a Corvette, but I am NOT buying one until they make the base engine a twin cam design. It's 2026, not 1978. There's no excuse!
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>>28898768
bro did you really need to have this stupid troll argument in two separate threads.
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>>28898770
I'm serious. If Mustang can make a twin cam, so can chebby. Step up your game, cheb!
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>>28898768
You're in luck. They had it in 1990 with the ZR1.
>not a base model
Not a base engine either, a completely unrelated aluminium block.
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>>28898820
M20x1.5 threads on the oil fitler
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>>28898820
the standard corvette engine/model should be twin cam too
if they realize twin cams are better, and have them on the upgrade model, they should be standard across the lineup

there's no excuse for pushrods in 2026
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>>28898768
You, uh - you don't really know what a cam is, what it does and what the differences are, do you:)
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>>28898928
opens and closes the tappet valves above the pistons right?
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>>28898768
Just buy a Z06 or ZR1
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>>28898937
It's an ethical consideration. They shouldn't be fleecing their customers with outdated engines.
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You guys are still responding to this shitty LLM?
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>>28898929
>Tappet
>Above piston
Yeah you don't know what you are talking about.
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>>28899032
it controls the opening and closing of the pistons, broadly speaking
>you need to be able to draw a diagram of a flathead engine to know it is an outdated design
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>>28898768
>I am NOT buying one
We already knew that. You were never going to buy one. Retard.
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>>28899076
There's no reason they can't jack the price up a bit and make all the engine offerings twin cams. It would sell more, and be more desirable. If they did this, I would buy it.
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>>28898940
I went out of my way to get my hands on a small block.
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>>28899080
You can't buy a pushgod v8 for 3k you damn bus riding freak!
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>>28899032
He clearly meant poppet.
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>>28899108
oh sorry, now that we are here, what IS the difference between a poppet and a tappet valve?
isn't it something along the lines of like round flat disc that has a pointy stick on one end to connect to the cams and there's a cylinder that it opens and closes?
I am admittedly terrible at technical details, not that anyone has ever patiently explained stuff to me, this is all just from reading car magazines.
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>>28898768
I hear you, but in the case of GM you're better off with push gods 2bhfam
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>>28899116
no, GM has had HORRIBLE problems with their 6.2L V8 to the point where I wonder if the embiggened 6.7L version isn't just a way of remedying those flaws.
Corvette has long been a dumping ground for Chevy truck engines. I think Chevy said it was gonna make two new large V8s for trucks and the 6.7 is one (the smaller one) of the two.

It is long since time for Ford, Chevy, and Fiat to figure out an all aluminum twin cam 4 liter V8 for their trucks and performance cars (and their luxury models) as the Germans have done since oh god early 90s?

https://www.gm-trucks.com/nhtsa-investigates-gm-6-2l-v8-engine-recall-failure/

To understand the current crisis, we have to look back to April 2025. As we originally reported in our massive deep-dive on the 6.2L L87 recall, GM recalled these engines (NHTSA Campaign 25V274) due to manufacturing defects in the connecting rods and crankshafts.

If these core internal components failed, the engine could seize up or lose all power while driving. The affected models included 2021–2024 Chevrolet models like the Tahoe, Suburban, and the Chevrolet Silverado (specifically the Silverado 1500), alongside the GMC Sierra 1500, Yukon, and Cadillac Escalade.

Fast forward to early 2026. The NHTSA’s Office of Defects Investigation has officially opened a Recall Query (RQ26001). The reason? They are investigating the “loss of motive power due to engine failure post recall remedy”.

According to the government’s official resume document opened on January 16, 2026 , the NHTSA has received 36 Vehicle Owner Questionnaires (VOQs) reporting engine failures. The most alarming detail is that in every single one of these 36 complaints, the engine had the official recall fix completed before the engine failed.
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>>28899117
Even worse, the complaints indicate that both versions of the remedy are failing. This means owners who received the preventative 0W-40 oil change, and owners who received a complete engine replacement, are both allegedly still experiencing catastrophic engine failures.

Because of this, the government is now actively assessing if GM’s original remedy for Recall 25V-274 was adequate. This new investigation impacts an estimated population of 597,571 vehicles.

maybe I'm wrong but I think this is the infamous engine where chebby said "nah we aren't gonna fix it, just use racing oil"
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>>28899117
>>28899118
pushgods shills have no response to this
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>>28898768
In early 90's there was a blind test. They gave testers an ohc and an ohv C4 to do some tests on a track. After that they decided to continue producing ohv cause testers said it was more fun.
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>>28899541
Even if that did happen, they would be different engines and so many other variables could be changed. Aka, implyingRigged.
>ohoho lets tune the carb wrong
>Let's make the final drive really tall
>Let's make it a super-low compression ratio
>Let's make it smaller
>Let's put in a restrictor plate
>Let's quiet the exhaust
>Hell, let's compare two entirely different cars and say that all the differences are in the valvetrain!
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>>28899545
How do you know all of this?
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>>28899117
>the absolute state of Mary Barras [[[GM]]]



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