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

🔥180 cc intake chamber

⚙️1.940 / 1.550 in valves

🏎️Universal fit for Small Block Ford

$1159.92

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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$1159.92

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

Description

⚡ Unlock your Ford’s hidden horsepower with Flotek precision!

HIGH PERFORMANCE INTAKE - Generous 180 cc intake chamber designed to boost combustion efficiency
PRO GRADE MACHINED FINISH - Expertly machined exterior ensures perfect sealing and long-lasting reliability
UNIVERSAL SMALL BLOCK FIT - Seamlessly compatible with all Small Block Ford engines—upgrade without hassle
LIGHTWEIGHT ALUMINUM BUILD - Durable yet lightweight aluminum construction for enhanced engine response
PRECISION VALVE ENGINEERING - Optimized 1.940 / 1.550 inch valves for peak airflow and power

The Flotek 203505 Aluminum Cylinder Head is a high-quality, machined aluminum component designed for Small Block Ford engines. Featuring 1.940 / 1.550 inch valves, a 180 cc intake chamber, and a 58 cc combustion chamber, it delivers improved airflow and combustion efficiency. Its universal fit and lightweight design make it an ideal upgrade for performance enthusiasts seeking reliable power gains.

Specifications

ASIN	B00BZM6EZM
Best Sellers Rank	#2,245,903 in Automotive ( See Top 100 in Automotive ) #17 in Automotive Performance Engine Cylinder Heads #69,139 in Automotive Replacement Engine Parts
Brand	Flotek
Customer Reviews	4.1 4.1 out of 5 stars (23)
Date First Available	January 1, 2012
Exterior	Machined
Item Weight	26.6 pounds
Item model number	203-505
Manufacturer	Flotek
Manufacturer Part Number	203505
Model	Cylinder Head
Product Dimensions	24.4 x 10.3 x 8.6 inches

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