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post #1 of 25 Old 04-03-2019, 02:36 AM Thread Starter
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5.0 build.

Hi guys, I'm busy building a 302 motor for my project car The motor is from a 1989 F-150. I'm trying to figure out how to get more ptv clearance with my gt40p heads.
The block had e7te heads on it before I got to gt40p.

Here's the parts I have for the build:

Gt40p heads
Trickflow valve springs
1.6 roller rockers
Stock pushrods from e7te heads
Stock cam
Stock roller lifters

That's the top end of the motor. The pistons are what I'm concerned about. I measured with clay and came up too close. I have stock notched pistons from a 66 289 that are in decent shape just laying around. Will those work I'm my 302 motor??

Here's a pic of both pistons:

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post #2 of 25 Old 04-03-2019, 02:54 AM Thread Starter
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Forgot to mention that I am going from efi to carburetor on the engine. I got an edelbrock intake 2121 and a 600 cfm edelbrock carburetor.

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post #3 of 25 Old 04-03-2019, 07:07 PM
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You shouldn't have PTV issues with that set up. Did you change the timing chain? Have you degreed the cam?

The 289 pistons won't work with a 302 crank. Not without significant parts shuffling and balancing.
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post #4 of 25 Old 04-03-2019, 08:48 PM Thread Starter
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I haven't degreed the cam. I've got the new timing chain ready to install. I still have the old timing chain on the motor. I have both marks on the chain gears lined up to top dead center.
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post #5 of 25 Old 04-03-2019, 09:37 PM
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What where the clay measurements?
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post #6 of 25 Old 04-03-2019, 10:11 PM Thread Starter
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The intake valve is at 2.77mm
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post #7 of 25 Old 04-03-2019, 10:25 PM
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2.77 is roughly like .110? Thats fine

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post #8 of 25 Old 04-03-2019, 10:33 PM
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mm? You in Canada or overseas? No matter.

That's 0.109". If you are confident that accurate and you want to maintain .120" (3.05mm) the simplest path is to use thicker head gaskets. Look for head gaskets that are .011"-.015" thicker than the gaskets your are checking with. You may need longer push rods or to shim the rockers accordingly.
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post #9 of 25 Old 04-03-2019, 10:34 PM
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Or just listen to Woody. He knows his stuff.
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post #10 of 25 Old 04-04-2019, 09:42 PM
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Run the 9333pt gaskets. You will be fine

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post #11 of 25 Old 04-05-2019, 12:54 PM Thread Starter
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Thanks for all the information guys. I really appreciate it! I've got a couple more questions.

The water pumps I know some have a reverse rotation. I have a 1966 289 timing cover which has the port for a mechanical fuel pump . Should I get a water pump for the 66 289?
The car is a v-belt which I'd like to keep. I don't want to spend the money converting to a serpentine belt if I don't have to.

Will the 1966 289 water pump work on my 1989 302?
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post #12 of 25 Old 04-05-2019, 01:22 PM
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Use any water pump you want. Reverse or standard rotation, the timing cover doesnt care. Also the block doesnt care which timing cover and water pump you use.

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post #13 of 25 Old 04-05-2019, 01:24 PM Thread Starter
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I compared the 289 and 302 water pumps. The 302 water pump won't work because the lower radiator hose port is on the wrong side and won't work with my radiator.
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post #14 of 25 Old 04-05-2019, 01:26 PM
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Quote:
Originally Posted by Johnnygalaxie View Post
I compared the 289 and 302 water pumps. The 302 water pump won't work because the lower radiator hose port is on the wrong side and won't work with my radiator.
that's a radiator problem, not a pump or cover issue.

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post #15 of 25 Old 04-05-2019, 01:29 PM Thread Starter
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Awesome thanks! That's what I wanted to hear.
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post #16 of 25 Old 04-05-2019, 02:39 PM
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Let me clarify a few things. Obviously if you use a mechanical fuel pump you want the water pump hose to be on the passenger side. Also if you are using a water pump that is passenger side, you need to use a driver's side timing pointer. Which may cause an issue with the balancer since the mass majority of balancers are either 10 or 11 o'clock timing Mark's which wont do you any good if you need to use a driver's side timing pointer at 2 o'clock.

From a pure fitment stand point, 289-302-351w block will accept any timing cover and pump combination. These blocks never changed from the beginning to the end. It's more a packaging situation for you.

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post #17 of 25 Old 04-18-2019, 03:48 PM Thread Starter
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Alrighty I've been working on the engine this week and I've almost got it back together. Thanks for all the info on this. I'm looking for some odds and ends now.
I'm dropping this engine in a 66 Ford Galaxie 500.

I've been looking at thermostats, I found some edelbrock thermostats at the parts store one is 160 and the other is 180
I want to keep the motor cool. My dad gave me a fan with 6 blades.
I'm thinking I might need a new radiator with more rows.

The car has a c4 I need to find a 50oz flywheel for the motor and one that'll work with that transmission.
Later I'd like to do a t5 conversion, but not now.
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post #18 of 25 Old 04-18-2019, 04:36 PM
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Cool intake air good, 160 degrees coolant temp no good. I'd suggest at least 180 degrees.
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post #19 of 25 Old 04-19-2019, 01:09 AM
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Quote:
Originally Posted by tjm73 View Post
The 289 pistons won't work with a 302 crank. Not without significant parts shuffling and balancing.
Why not?
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post #20 of 25 Old 04-19-2019, 08:30 AM
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Why not?
You're right. I forgot they have the same piston pin height and the rod length changes to compensate for the stroke difference.

But balancing is most likely still a concern.
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post #21 of 25 Old 04-21-2019, 11:14 AM Thread Starter
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Alright, I ran into another snag. I need headers for the gt40p heads. I'm trying to find some that will work with my exhaust. I found Ford 1964-1977 260 289 302 Shorty Stainless Steel Headers Exhaust Manifolds. Will
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post #22 of 25 Old 04-21-2019, 11:17 AM Thread Starter
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Will these work?
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post #23 of 25 Old 04-21-2019, 11:51 AM
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I wouldn’t count on it; at least not without using special plug wires. I’d just get the Gt40p specific headers.

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post #24 of 25 Old 04-21-2019, 04:01 PM
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Quote:
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You're right. I forgot they have the same piston pin height and the rod length changes to compensate for the stroke difference.

But balancing is most likely still a concern.

Might be. But it's the same part. Ford never even changed the part number.

I used to make them for Ford SVO, and it was really hard making a piston that heavy.
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post #25 of 25 Old 04-21-2019, 07:17 PM Thread Starter
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Alright, I got the 50 oz balancer that will work with the 3 bolt pulley. I need to get a 50 oz flywheel. I have the flywheel from the 89 f150 that originally came off the motor. I compared it with the flywheel that came out of the 66 galaxie and it looks the same as the f150 flywheel the only differenceid the one out id the f150 has more teeth. The transmission in the galaxie is a c4 I believe.
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