Good engine to put in 89 convertible - Mustang Evolution

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Old 01-24-2012, 02:19 AM   #1
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Good engine to put in 89 convertible

I have a 89 convertible that i swapped a 5.0 in from a 2.3 but the motor killed it self broke block i got out of a mark iiv wanted to see what you guys think what motor should i put it i was thinking about 306 i have a 302 from a 87 I would use or a gt-40 explorer motor if i go gt-40 engine I'm try get gt-40p engine i really don't want to spend more than 700-800 351w would be nice but the cheapest i could find one was for 1000 and i still need to get a rear end and gears and the wife trying cut me off at 1000$ so I'm trying to stay in that thanks for your time

---------- Post added at 08:19 AM ---------- Previous post was at 08:14 AM ----------

Also wanted to add its going to be a daly driver but want it to have a good amount of power way more than stock jot a race car tho with a t5 wc
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Old 01-24-2012, 02:22 AM   #2
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A turbo 306 would go like stink on a wet dog or maybe a novi1000 on a 331 now that would be nice not as rev hungry as the 306 but torque to spare.
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Old 01-25-2012, 08:40 AM   #3
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Re: Good engine to put in 89 convertible

If you are on a budget, then stick with the 302 you have from the 87. Get a rebiuld kit, or at least re-ring it if the bores are ok. Go with an e303 cam, and gt-40p heads (ebay for a couple of hundred). you can use bbk headers instead of the more expensive headers with the gt-40 heads, but you need 90 degree boots on the plugs to clear the tubes. I have a 351w in my '86 with the gt-40p heads, turned out to be a decent combo. I also used heat shields around the boots on the driver's side, the passenger side cleared no problem. You could probably end up building that 302 for around 700-800, for daily driver use and still have some $$ for a set of gears.
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Old 01-25-2012, 11:47 PM   #4
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Hawk you no if they sale a good 302 to 306 kit with piston gaskets all the stuff you need

---------- Post added at 05:47 AM ---------- Previous post was at 05:34 AM ----------

Jp i saw some rebuild kits on eBay with pistons and everything i want to change the engine to foraged piston because that year didn't come with strong pistons I'm going to look into 306 kit too see if its around the same for it
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Old 01-25-2012, 11:51 PM   #5
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Quote:
Originally Posted by kbolden50
Hawk you no if they sale a good 302 to 306 kit with piston gaskets all the stuff you need

---------- Post added at 05:47 AM ---------- Previous post was at 05:34 AM ----------

Jp i saw some rebuild kits on eBay with pistons and everything i want to change the engine to foraged piston because that year didn't come with strong pistons I'm going to look into 306 kit too see if its around the same for it
87 came with forged pistons.

---------- Post added at 11:51 PM ---------- Previous post was at 11:48 PM ----------

Also allow for the block to be machined in your budget if you're set on doing a 306.
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Old 01-26-2012, 12:00 AM   #6
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Im i reading it wrong engine number and piston
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Old 01-26-2012, 12:04 AM   #7
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This is a forged piston right
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Old 01-26-2012, 12:58 AM   #8
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Re: Good engine to put in 89 convertible

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Originally Posted by kbolden50 View Post
Im i reading it wrong engine number and piston
That piston, E6ZE-6110-BA is a 1986 (9.2:1 compression ratio) forged, ring thickness and ring tension is reduced; 30% on upper compression ring & 35% on the oil control ring.
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Old 01-26-2012, 12:59 AM   #9
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Re: Good engine to put in 89 convertible

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This is a forged piston right
Have no idea what that piston is, unless you can come up with some numbers like on the first piston?
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Old 01-26-2012, 10:28 AM   #10
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Re: Good engine to put in 89 convertible

I dont think youre gonna get real noticable power gains from boring it to a
306. its only 4 cubic inches. if you are on a budget, Id save the money for other parts. if there is something wrong with the cylinder walls then have it machined, or if you plan on doing a 331 or 347 stroker, then youll see some power gains. I have a friend here in Jersey that will punch the block for about $25 a hole....to me thats $200 for something else, and he's a friend hooking me up too. Be careful with parts from ebay, not to say that its all crap, but there are some sub-par parts on there. Id personally stick with Summit, Jegs or one of the bigger parts suppliers so you know you get quality parts. Also Summit and Jegs do sell on ebay, so just check the seller. You can get the forged piston kit and assemble your block, but check what you have first to make sure you dont already have forged pistons. I believe '88 or 89 was the first year they started to put forged pistons in the 302s. Just google ford casting numbers and you can find out what you have.
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Old 01-27-2012, 02:03 AM   #11
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Other piston engine number 89 mark iiv thats what the guy told me i got it from
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Old 01-27-2012, 02:11 AM   #12
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Is that a good motor the 86
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Old 01-27-2012, 11:24 PM   #13
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The 86 motor only had 200 hp from the factory, the block is the same. If you have an 86 block, then get a rebuild kit for an 89 that has the forged pistons. I did that to mine and it worked fine, until the 351 went in
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