Mark VIII motor

[GaryG]

is there anything different bout them from the 96-98 4v? and is there any pros/cons bout them? do the Mark VIII have the B-heads?

 

[Jrgunn5150]

is there anything different bout them from the 96-98 4v? and is there any pros/cons bout them? do the Mark VIII have the B-heads?

They have B heads, cast 6 bolt cranks, a different intake (Unless it's a 97), and different cams.

 

[Mr Jones 4.6]

The intake cams are the same as the cobra, but the exhaust cams are detuned for exhaust volume. The intake manifold is diffrent and designed to make power I believe around the 1500-5500 rpm range. Otherwise the engines are the same as the other B-series 4-valves.

 

[uncltrvlnmatt]

They are also rated at 285 fwhp, instead of 305 fwhp.

 

[trav_19]

The intake cams are the same as the cobra, but the exhaust cams are detuned for exhaust volume. The intake manifold is diffrent and designed to make power I believe around the 1500-5500 rpm range. Otherwise the engines are the same as the other B-series 4-valves.

you want a C-Series anyways :khobra: imp:

 

[GaryG]

is there anything different bout them from the 96-98 4v? and is there any pros/cons bout them? do the Mark VIII have the B-heads?

They have B heads, cast 6 bolt cranks, a different intake (Unless it's a 97), and different cams.

the 97 has the same intake as the B-headed cobra's?

They are also rated at 285 fwhp, instead of 305 fwhp.

is this because of compression or something else?

 

[Steven]

is there anything different bout them from the 96-98 4v? and is there any pros/cons bout them? do the Mark VIII have the B-heads?

They have B heads, cast 6 bolt cranks, a different intake (Unless it's a 97), and different cams.

the 97 has the same intake as the B-headed cobra's?

They are also rated at 285 fwhp, instead of 305 fwhp.

is this because of compression or something else?

mainly due to exhaust and the intake

 

[Mr. OAM]

I just read in a magazine this weekend, the Mark VIII 4.6 engines were Italian sourced, all aluminum blocks capable of handling 900 HP.


Steve

 

[xsoutherngun89x]

yup, i believe they shared the same teskid block as the cobras, which are made in italy

 

[TxCobrA98]

yup, i believe they shared the same teskid block as the cobras, which are made in italy

:bling: :bling:
teksid ftmfw

 

[Jrgunn5150]

Stock iron blocks are good to 600 or more rwhp. The price people are getting for bare Teskids doesn't justify them, IMO.

I only had one because I got it in a complete Mark VIII car that I got paid 50 bucks to haul off :dancing6:

 

[AaRoN]

Stock iron blocks are good to 600 or more rwhp. The price people are getting for bare Teskids doesn't justify them, IMO.

I only had one because I got it in a complete Mark VIII car that I got paid 50 bucks to haul off :dancing6:

The 03/04 Cobra has an iron block.

 

[Blind]

The mark8 motor I used in my `97 is basically a B headed cobra motor, with SOHC GT internals.

I swapped the intake manifold/IMRC plates and exhaust manifolds from a `96 cobra onto mine and it runs just like a `96-`98 cobra with IMRC deletes, it was a very easy motor swap compared to the last one I did (`95 bmw e36 318is -> `95 bmw e36 m3).

lots of potential in the mark8 swap, it cost me nothing to do the motor swap, as I parted the mark8 out that I bought for more money than I spent on anything :hammer:

 

[GaryG]

thanks for the info guys, much appreciated

 

[xsoutherngun89x]

Stock iron blocks are good to 600 or more rwhp. The price people are getting for bare Teskids doesn't justify them, IMO.

I only had one because I got it in a complete Mark VIII car that I got paid 50 bucks to haul off :dancing6:

hey Jr, dont you mean the internals of a stock iron block? i thought the block itself could withstand 900 HP roughly? or did i misread that somewhere...

 

[Jrgunn5150]

No, the block itself. The iron GT block, not the iron Cobra block, around 6-700 rwhp a GT block will split.

 

[xsoutherngun89x]

i did not know that...learn something new everyday. lol. i was probably thinkin of the iron cobra block.

 

[19mustang95]

the 93-95 Mark8 has shitty valve springs, the 96+ has the same springs as Cobras do.

 

[GaryG]

the springs im not too worried bout since ill be getting cams too, and i would just upgrade the springs while im at it

 

[98_MustangGT]

you thinkin about swapping a Mark VIII motor into your stang when you get it gary? that would be sweet.