Explorer P heads...

[88grandmarq]

... are here !

UPS guy showed up about 11 am yesterday morning.
I got them for $275 shipped to my door.

already got them apart and started the cleaning process. doing some minor port work and I have the TFS valve spring kit ordered from Summit this morning.

[85crownHPP]

mmmm goodies... I can't wait to get a taste of what you have cookin!

[88grandmarq]

finished with one head this afternoon... just waiting for the valve springs and stem seals to arrive for the re-assemble.

other head is on the bench and partially dis-assembled.

[Lincolnmania]

cool.....dont get too crazy with porting.....there isnt much there on the exhaust side on the gt40p heads

[88grandmarq]

cool.....dont get too crazy with porting.....there isnt much there on the exhaust side on the gt40p heads

yeah... only doing a light clean up. smoothing out some machine edges and cleaning out some casting flash.

[88grandmarq]

heads are all done... cleaned up, lapped the valves, light port work, TFS valve springs.



Couple of shots comparing P heads to E7/HO heads.

[88grandmarq]

I found this page AFTER I was done porting, but basically I did most of the stuff he did.

http://www.diyporting.com/gtpex.html

[88grandmarq]

P head swap has been finished for about 3 weeks now. Car is running better than ever and has a noticable low and mid-range power increase. fuel mileage is up too !

Made several improvements/upgrades while I had the car apart;
Explorer P heads with mild porting
TFS valve springs
1.7 Cobra Rocker arms
ASP under drive crank pulley
3 core radiator
flex a lite 298 electric fan
3G alternator upgrade
new water pump

For headers, I used tubular manifolds from a 90 town car. they are working very well and have minimal spark plug/wire interference problems. #5 and #6 were very close, so I dimpled the tubes and used a 90 degree plug boot. #7 had some contact issues because of the engine oil dipstick tube. I got some hi-heat protector boots at the parts store and insulated #7 plug boot to fix that.

I managed to mis-place the $100 fan control module, so the fan is wired to a manual on/off switch for now. I installed a temp gauge so I can monitor engine coolant temp and turn the fan on when it gets too hot. I will order another fan controler in next few weeks. so far, the 3 core radiator is doing its job, with the cooler weather, the engine is running a constant 200 degrees most of the time. it creeps up to about 220 in traffic. the huge fan pulls the coolant temps down about 30 degrees in about 15 seconds.

[johnunit]

all told, what did the head swap itself run you, including gaskets and fasteners and all that?

That sounds like a nice setup you have.

[gadget73]

These heads replaced what, stock E7 heads?

[88grandmarq]

all told, what did the head swap itself run you, including gaskets and fasteners and all that?

That sounds like a nice setup you have.

never added it up ... but i have been accumulating parts for almost a year.
I would guess about $700 for heads, springs, rockers and gaskets.
well over a $1000 when you include the cost of the Fan and controller.

[88grandmarq]

These heads replaced what, stock E7 heads?

Yeah... E7 heads.

[88grandmarq]

just ordered a new fan control module... maybe I will get this one installed BEFORE it disappears.

[89LincolnTWNcar]

Nice job on the porting, how long did that take you?

[88grandmarq]

about a day and half... most of the the time was spent taking the heads apart.
my crappy valve spring compressor slowed me down.