Top End Reccomendations

520Fox · Sep 10, 2020

I've been wanting to do like a top end kit on my 87 LX for a while now. Looking to see what everyone recommends for heads, cam, intake, tb size, fuel injector combination that works well together. Keep in mind i would like to do a stroker kit either a 331 or 347, and would like a top end combination to work well with that in the future as well, so I don't have to buy twice. Also curious what should I expect for RWHP and torque from heads, cam, intake and 1/4 mile

Mstng93SSP · Sep 10, 2020

You can't really go wrong with any of the Trick Flow stuff. I have the 11R heads and I like them a lot.

Chris

revhead347 · Sep 10, 2020

What are your goals? A Trick Flow 190cc head is great for a 302 and a 347 engine. There is no logical reason to do a 331. An 11R is a seriously aggressive head, and might not fit your goals. You can not go wrong with one of those Trick Flow top end kits. Great quality and the package keeps the price down.

Kurt

Mustang5L5 · Sep 10, 2020

Take your pick

1979-1993 Fox Body Mustang Top End Kits - LMR.com

Late Model Restoration has made it easy to bolt on performance to your 302 engine with top end kits that include everything you need! Ford equipped their 5.0 mo

lmr.com

emagdnim · Sep 11, 2020

What's better bang for your buck. A top end kit like this or something like a supercharger or a on3 turbo kit on stock top end?

Hoytster · Sep 11, 2020

emagdnim said:
What's better bang for your buck. A top end kit like this or something like a supercharger or a on3 turbo kit on stock top end?

You will make more power with a supercharger or turbo kit on a stock top end then you will with a top end kit on a stock short block setup.

Mustang5L5 · Sep 11, 2020

I'm not sure I would call a supercharger kit a good bang for buck option. An entry level kit is $3K and recommended for stock motors only. A non-intercooled vortech kit is around $4k and an intercooled version is $6K.

In comparison, an On3 turbo setup is $1800. A hellion kit is $4K.

Top end kit is around $2500.

None of this takes into account supporting mods like fuel pumps, injectors, ecu's, exhaust, etc.

520Fox · Sep 11, 2020

revhead347 said:
What are your goals? A Trick Flow 190cc head is great for a 302 and a 347 engine. There is no logical reason to do a 331. An 11R is a seriously aggressive head, and might not fit your goals. You can not go wrong with one of those Trick Flow top end kits. Great quality and the package keeps the price down.

Kurt

I want to make the car still streetable and be able to bring it to the track as well, it's not a daily driver

General karthief · Sep 11, 2020

If you want dependability go with a top end kit. JMO

7991LXnSHO · Sep 12, 2020

revhead347 said:
What are your goals? ... There is no logical reason to do a 331. ...

Kurt

Can you expand on this statement? It’s been a while since I looked into who is making the best kits. Is it the similar cost for more displacement? The oil and increased piston side load wear have been fixed? I do not need a short block today, but that can change quickly on an unknown mileage engine!

revhead347 · Sep 14, 2020

7991LXnSHO said:
Can you expand on this statement? It’s been a while since I looked into who is making the best kits. Is it the similar cost for more displacement? The oil and increased piston side load wear have been fixed? I do not need a short block today, but that can change quickly on an unknown mileage engine!

Whatever makes the kit, there is generally no cost difference between a 331 and a 347. The side load and oil burning issues came from really old kits that use the stock 5.088" rod. Budget stroker kits have kind of become a thing of the past, as rods aren't that big of a cost anyway. A good 347 stroker kit uses a 5.4" rod which keeps the stroke/rod length ratio very reasonable (it's actually better than a number of Chevy engines from the factory), and positions the piston wrist pin away from the oil control ring to eleviate oil burning issues.

There is nothing wrong with a 331 kit, but given the cost of building a 331 and a 347 is identical, there is no reason to give up the displacement. Theoretically, the 347 sucks in more air, and makes peak power at a lower rpm. RPM is what really hurts these blocks. The difference is basically theoretical, but it's there.

Kurt

revhead347 · Sep 14, 2020

520Fox said:
I want to make the car still streetable and be able to bring it to the track as well, it's not a daily driver

That shouldn't be a problem. I would call Trick Flow and ask for recommendations. Both the 11R head, and the standard twisted wedge can be make streetable. However, there are going to be complications on the 11R head with a stock short block and the valve reliefs on the piston. Tech support is there for a reason, and they will give you better advice than I can.

Kurt

Top End Reccomendations

520Fox

New Member

Mstng93SSP

You have a nice rear end there Dave.

revhead347

Apparently my ex-husband made that mistake.

Mustang5L5

That is…until I whipped out my Bissell

1979-1993 Fox Body Mustang Top End Kits - LMR.com

emagdnim

Active Member

Hoytster

I don't dare do that to my Knob

Mustang5L5

That is…until I whipped out my Bissell

520Fox

New Member

General karthief

wonder how much it would cost to ship you a pair

7991LXnSHO

wanna catch the space herp

revhead347

Apparently my ex-husband made that mistake.

revhead347

Apparently my ex-husband made that mistake.

Similar threads

Top End Reccomendations

New Member

You have a nice rear end there Dave.

Apparently my ex-husband made that mistake.

That is…until I whipped out my Bissell

Active Member

I don't dare do that to my Knob

That is…until I whipped out my Bissell

New Member

wonder how much it would cost to ship you a pair

wanna catch the space herp

Apparently my ex-husband made that mistake.

Apparently my ex-husband made that mistake.

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