Why are the cam lobes all wrong in the directions? I mean on the ome bank, the exhaust and intake valves all open at the same time.

I couldn't figure that out either. I don't find it listed anywhere why. I ended up swapping around the cam lobes to match the other side. I appears to be operating correct with way it functions & the spark plug firing. It should have been noted someplace why the cam shaft was different on that side. The only thing I can figure is maybe they are trying to show the way 4 valves per cylinder operate (even though there are only 2).

What are the dimensions when built?

Height 8.5” Depth 8” Length 12”

What kind of tools are needed for assembly?

Generally all you will need is a small precision screwdriver. They send one in the package,however if you a set of precision stew drivers you're good to go.

Anyone know how to reach the vendor (Playz website just sends you to Amazon) I have a defective motor.

If you click on the product you ordered from Amazon you can choose actions and one is to message the actual product store and then you can write a message and Amazon passes it on. I just had to do that for a damaged product return.

Playz Large V8 Engine Model Kit Build Your Own Mini

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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4985112₫

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Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Ignite your inner engineer with the V8 kit that actually runs!

HANDS ON STEM LEARNING - Boost spatial reasoning, mechanical skills, and problem-solving with an engaging DIY build designed for curious minds.
BUILD BOND BRAIN BOOST - Ideal for solo or shared builds, this kit fosters patience, focus, and meaningful connection through a satisfying hands-on experience.
INTERACTIVE EDUCATIONAL - Watch engine fans spin and hear realistic engine sounds, making STEM education immersive and fun for all ages.
AUTHENTIC V 8 ENGINE MECHANICS - Experience real piston movement, crankshafts, and belts that mimic a classic car engine in miniature form.
PERFECT GIFT FOR FUTURE ENGINEERS - Inspire creativity and critical thinking in kids and adults alike with a captivating project that’s both challenging and rewarding.

The Playz Large V8 Engine Model Kit is a battery-powered, hands-on STEM project featuring a realistic 8-cylinder engine replica with moving pistons, belts, and interactive parts. Designed for ages 8 and up, it combines education and entertainment by teaching mechanical engineering concepts through an engaging build experience that produces real engine sounds and motion. Perfect for hobbyists, educators, and families seeking a brain-boosting, rewarding challenge.

Specifications

ASIN	B07QCQNKG7
Age Range Description	Kid
Best Sellers Rank	#35,160 in Toys & Games ( See Top 100 in Toys & Games ) #303 in Educational Science Kits
Brand Name	Playz
Color	Multicolor
Customer Reviews	4.4 4.4 out of 5 stars (4,956)
Educational Objective	STEM, Spatial Reasoning, Problem Solving Skills, Mechanical Engineering Knowledge
Item Weight	1.8 kg
Manufacturer	Playz
Manufacturer Maximum Age (MONTHS)	144
Manufacturer Minimum Age (MONTHS)	144
Manufacturer Part Number	v8engine
Material Type	Plastic
Number of Batteries	3 AA batteries required.
Number of Players	1
Operation Mode	Manual
Power Source	battery powered
Set Name	V8 Engine
Size	small or miniature
Supported Battery Types	Alkaline
Theme	Vehicle
UPC	850007659028

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