What is the diameter of the center mounting hole?

PART #4787 CENTER HOLE IS ALMOST 1"

Can you degree the cam with heads on 6.1 hemi?

This kit is for heads off. The heads on kit is part number 4796.

Will this work on a hayabusa motor?

This will work for any engine combination, how ever we do not offer a way to mount the degree will to the Hayabusa crankshaft.

Some of the pictures do not match the product from reviewers with the large wheel. It is the small degree wheel correct?

The 4796 is the smaller degree wheel, yes.

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COMP Cams 4790 9 Sportsman Degree Wheel

Product ID: 55417692

📏9-inch precision sizing

🔩Bolts on harmonic balancers

⚙️Fits engine stand & in-vehicle use

€ 108.05

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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€ 108.05

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

Description

⚙️ Tune like a pro, measure like a boss!

VERSATILE FIT - Designed to work seamlessly on engine stands or with the engine still installed—no compromises.
PRECISION PERFECTED - Multiple sized degree wheels ensure pinpoint accuracy for your engine tuning.
CLEAR CLEAN READINGS - White painted steel surface with easy-to-read markings reduces errors and speeds up your workflow.
LIGHTWEIGHT DURABILITY - At just 480g, this steel degree wheel balances ruggedness with portability for on-the-go pros.
UNIVERSAL COMPATIBILITY - Easily bolts onto most harmonic balancers or pairs with COMP crankshaft sockets for hassle-free setup.

The COMP Cams 4790 9 Sportsman Degree Wheel is a 9-inch steel measuring tool designed for precise engine tuning. Its versatile design fits both engine stands and in-vehicle setups, easily mounting on harmonic balancers or with COMP crankshaft sockets. Featuring a white painted surface for clear readings and weighing just 480 grams, it’s a durable, professional-grade tool trusted by automotive experts.

Specifications

ASIN	B00062Y9U4
Best Sellers Rank	376,519 in Automotive ( See Top 100 in Automotive ) 20 in Car Camshafts
Brand	Comp Cams
Customer Reviews	4.6 4.6 out of 5 stars (344)
Date First Available	12 Aug. 2012
Exterior	Painted
Guaranteed software updates until	unknown
Item Weight	480 g
Item model number	4790
Manufacturer	COMP Cams
Manufacturer part number	4790
Model	4790CPG
OEM Part Number	4790CPG
Position	Centre
Product Dimensions	22.86 x 22.86 x 0.25 cm; 479.99 g

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