What is the maximum lift for these heads?

They say good to .550 lift with roller cam.

Would these fit a 1987 351w??

They will fit a 87 351. However you will want to make sure your compression ratio doesn't jump to high as these heads have a much smaller combustion chamber than stock.

With this work for a 1965 289?

it will fit but you will have to get differant rocker arms tne studs will not work with stock rockers i got roller rockers with mine

Can I use these heads with a flat tappet cam, ive looked at all the questions and half say no and half say yes?

Yes I'm running a comp cams Big mutha thumpr cam flat tappet

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Flotek 203505 Aluminum Cylinder Head for Small Block Ford

Product ID: 51109410

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🌍Made in USA

📏24.4 x 10.3 x 8.6 in

⚖️26.6 lbs

Description

🚀 Rev Up Your Ride with Flotek's Precision Power!

UNIVERSAL FIT - Designed to seamlessly integrate with Small Block Ford models.
LIGHTWEIGHT DESIGN - Optimized for performance without the extra weight.
EXPERTLY ENGINEERED - Manufactured by Flotek, a trusted name in automotive innovation.
UNLEASH PERFORMANCE - Elevate your engine's efficiency with precision engineering.
DURABLE MACHINED EXTERIOR - Crafted for longevity and resilience under pressure.

The Flotek 203505 Aluminum Cylinder Head is a high-performance component designed for Small Block Ford engines. Weighing in at 26.6 pounds and featuring universal fit dimensions of 24.4 x 10.3 x 8.6 inches, this cylinder head is expertly machined for durability and efficiency, making it a must-have for automotive enthusiasts looking to enhance their vehicle's performance.

Specifications

Manufacturer	Flotek
Brand	Flotek
Model	Cylinder Head
Item Weight	26.6 pounds
Product Dimensions	24.4 x 10.3 x 8.6 inches
Item model number	203-505
Exterior	Machined
Manufacturer Part Number	203505

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