1967 GT500 which engine would you put in and why?

[98SVT - was 06GT]

At the far end if he wants to carve up some twisty roads and play at track day then an all aluminum FE with 500+ hp is the way to go. Since it lacks the original engine already a Shelby FE dressed as a 67 may be acceptable and add some value at sale time. https://www.shelbyengines.com/collections/shelby-fe-engines

That's what I thought build a shelby fe but with original intake, carbs, ignition etc. should really look awesome and it should make a lot of fun. But then I don't know if the 9" with just 31 spline will survive this. Its really a tough decision to make.

The 9" will be fine you can't get enough tire in the stock wheel well to get enough traction to break it.

[427heaven]

Kent-   It really is not that difficult of a question to ask yourself. Most SHELBYS dont have their born with engines so would you like to drive something that sounds like your vacuum cleaner when driving it or would you prefer the wail of a highly tuned Big Block echoing off the buildings or canyon walls, I compare it to wanting a Cobra..... A small block 289 is fun- But a 427 SC is breathtaking, I would choose the latter. Here is a picture of mine with a 427 medium riser, 99 percent of people dont know the difference or really care, but what they do like, is going for a ride and screaming like a girl SLOW DOWN/SLOW DOWN!

[shelbydoug]

Considering the fact that there is a limit to how much power you can actually put on the ground in a "Mustang chassis", astronomical numbers seem to be somewhat of a lip service to me?

IF we are talking around stock CI displacements, then a reworked 428 PI is not so much out of the question.

Essentially the basis for a 427 top end is already there. Certainly there is virtually no difference in torque output.

The criticism of the PI is in the under camming of it and the inherent weakness of the stock connecting rods.


I'm getting 500hp out of my 347. If you can't get that out of a 428 then you must be hanging out with the daily riders of the short bus?

Put some good valves, springs and cam in the top end. Put a set of Hooker headers in it and leave it dressed as a '67 GT500 should be.

It is quite a handful to deal with at that.


If you want to play virtual HP games and why would you? You can play that with Fantasy Football amongst other things.

Put the money into the internal performance parts that you don't see. The thing is plenty fast and lethal that way. Let the guys with the aluminum everything and the titanium gonads show their cars at the local shows and impress the crap out of the kiddies while you drive your 500.

[FL SAAC]

Considering the fact that there is a limit to how much power you can actually put on the ground in a "Mustang chassis", astronomical numbers seem to be somewhat of a lip service to me?

IF we are talking around stock CI displacements, then a reworked 428 PI is not so much out of the question.

Essentially the basis for a 427 top end is already there. Certainly there is virtually no difference in torque output.

The criticism of the PI is in the under camming of it and the inherent weakness of the stock connecting rods.


I'm getting 500hp out of my 347. If you can't get that out of a 428 then you must be hanging out with the daily riders of the short bus?

Put some good valves, springs and cam in the top end. Put a set of Hooker headers in it and leave it dressed as a '67 GT500 should be.

It is quite a handful to deal with at that.


If you want to play virtual HP games and why would you? You can play that with Fantasy Football amongst other things.

Put the money into the internal performance parts that you don't see. The thing is plenty fast and lethal that way. Let the guys with the aluminum everything and the titanium gonads show their cars at the local shows and impress the crap out of the kiddies while you drive your 500.

+ 1 all that power being transferred through the  antique drive train and chassis creates havoc on all parts.

Broke a brand new motor mount, that triggered a broken fan shroud, that bent a fan and warped the fan clutch. Out back made one tire lumpy and the other shredded into pieces.  About $2K in parts and repairs, just is not worth it.

Start it, let it kackle and go for a nice cruise, enjoy your day

[427hunter]

Considering the fact that there is a limit to how much power you can actually put on the ground in a "Mustang chassis", astronomical numbers seem to be somewhat of a lip service to me?

IF we are talking around stock CI displacements, then a reworked 428 PI is not so much out of the question.

Essentially the basis for a 427 top end is already there. Certainly there is virtually no difference in torque output.

The criticism of the PI is in the under camming of it and the inherent weakness of the stock connecting rods.


I'm getting 500hp out of my 347. If you can't get that out of a 428 then you must be hanging out with the daily riders of the short bus?

Put some good valves, springs and cam in the top end. Put a set of Hooker headers in it and leave it dressed as a '67 GT500 should be.

It is quite a handful to deal with at that.


If you want to play virtual HP games and why would you? You can play that with Fantasy Football amongst other things.

Put the money into the internal performance parts that you don't see. The thing is plenty fast and lethal that way. Let the guys with the aluminum everything and the titanium gonads show their cars at the local shows and impress the crap out of the kiddies while you drive your 500.

500 horse out of a 347 - what heads, cam, compression, intake and exhaust are you running?

[crossboss]

IF it was mine, I would keep it an FE of course. So, in would go a nice stroker 428. Alum heads, CJ exhausts, Tunnel Wedge intake , hyd roller cam, etc.

[shelbydoug]

Considering the fact that there is a limit to how much power you can actually put on the ground in a "Mustang chassis", astronomical numbers seem to be somewhat of a lip service to me?

IF we are talking around stock CI displacements, then a reworked 428 PI is not so much out of the question.

Essentially the basis for a 427 top end is already there. Certainly there is virtually no difference in torque output.

The criticism of the PI is in the under camming of it and the inherent weakness of the stock connecting rods.


I'm getting 500hp out of my 347. If you can't get that out of a 428 then you must be hanging out with the daily riders of the short bus?

Put some good valves, springs and cam in the top end. Put a set of Hooker headers in it and leave it dressed as a '67 GT500 should be.

It is quite a handful to deal with at that.


If you want to play virtual HP games and why would you? You can play that with Fantasy Football amongst other things.

Put the money into the internal performance parts that you don't see. The thing is plenty fast and lethal that way. Let the guys with the aluminum everything and the titanium gonads show their cars at the local shows and impress the crap out of the kiddies while you drive your 500.

500 horse out of a 347 - what heads, cam, compression, intake and exhaust are you running?

Ah! How much you wanna' pay?

[427hunter]

Considering the fact that there is a limit to how much power you can actually put on the ground in a "Mustang chassis", astronomical numbers seem to be somewhat of a lip service to me?

IF we are talking around stock CI displacements, then a reworked 428 PI is not so much out of the question.

Essentially the basis for a 427 top end is already there. Certainly there is virtually no difference in torque output.

The criticism of the PI is in the under camming of it and the inherent weakness of the stock connecting rods.


I'm getting 500hp out of my 347. If you can't get that out of a 428 then you must be hanging out with the daily riders of the short bus?

Put some good valves, springs and cam in the top end. Put a set of Hooker headers in it and leave it dressed as a '67 GT500 should be.

It is quite a handful to deal with at that.


If you want to play virtual HP games and why would you? You can play that with Fantasy Football amongst other things.

Put the money into the internal performance parts that you don't see. The thing is plenty fast and lethal that way. Let the guys with the aluminum everything and the titanium gonads show their cars at the local shows and impress the crap out of the kiddies while you drive your 500.

500 horse out of a 347 - what heads, cam, compression, intake and exhaust are you running?

Ah! How much you wanna' pay?

You still haven't answered the question.

[98SVT - was 06GT]

500 horse out of a 347 - what heads, cam, compression, intake and exhaust are you running?

Big HP in todays engines is almost too easy. https://www.shelbyengines.com/collections/shelby-289-engines/products/aluminum-289-364ci-stage-i-500hp
Paint it blue and no one will know.

My 310" Cleveland cranks out 650 @ 7,800 it was built in 85 with all the best parts and is alive and well today..
Carrillo rods
SVO A3 aluminum heads
Roller rockers – Crower stainless
Moroso Stud Girdle
Steel billet crank
Olson dry sump pan
Titanium valve keepers
Pistons – Venolia
Motorsport 351 pillow NASCAR block
Steel billet crank

[427hunter]

500 horse out of a 347 - what heads, cam, compression, intake and exhaust are you running?

Big HP in todays engines is almost too easy. https://www.shelbyengines.com/collections/shelby-289-engines/products/aluminum-289-364ci-stage-i-500hp
Paint it blue and no one will know.

My 310" Cleveland cranks out 650 @ 7,800 it was built in 85 with all the best parts and is alive and well today..
Carrillo rods
SVO A3 aluminum heads
Roller rockers – Crower stainless
Moroso Stud Girdle
Steel billet crank
Olson dry sump pan
Titanium valve keepers
Pistons – Venolia
Motorsport 351 pillow NASCAR block
Steel billet crank

Bench racing lives on  - Everyone is cruising around at 7,800 rpm in their 1000 hp mustang - on radial tires and doing 10 second passes...

[FL SAAC]

500 horse out of a 347 - what heads, cam, compression, intake and exhaust are you running?

Big HP in todays engines is almost too easy. https://www.shelbyengines.com/collections/shelby-289-engines/products/aluminum-289-364ci-stage-i-500hp
Paint it blue and no one will know.

My 310" Cleveland cranks out 650 @ 7,800 it was built in 85 with all the best parts and is alive and well today..
Carrillo rods
SVO A3 aluminum heads
Roller rockers – Crower stainless
Moroso Stud Girdle
Steel billet crank
Olson dry sump pan
Titanium valve keepers
Pistons – Venolia
Motorsport 351 pillow NASCAR block
Steel billet crank

Bench racing lives on  - Everyone is cruising around at 7,800 rpm in their 1000 hp mustang - on radial tires and doing 10 second passes...

Love it !

Both our 69s are solid high 13 second to 14 second travesties......lmao

Now the late models are another story

[FL SAAC]

Oh go with what you have use the 427

[98SVT - was 06GT]

Bench racing lives on  - Everyone is cruising around at 7,800 rpm in their 1000 hp mustang - on radial tires and doing 10 second passes...

Sorry should have included a picture

[crossboss]

Bench racing lives on  - Everyone is cruising around at 7,800 rpm in their 1000 hp mustang - on radial tires and doing 10 second passes...

Sorry should have included a picture

I believe that 427hunter was referring to the claim that a 347 made 500 HP...not a 'race car'.

[427hunter]

Bench racing lives on  - Everyone is cruising around at 7,800 rpm in their 1000 hp mustang - on radial tires and doing 10 second passes...

Sorry should have included a picture

I believe that 427hunter was referring to the claim that a 347 made 500 HP...not a 'race car'.

Scott, why do I feel like we went back in time and are standing in the Super Shops parking lot.