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Topic: Explorer 302 (Read 5450 times) previous topic - next topic

Explorer 302

Reply #15 –
Quote from: Shadow;377432
for SBF guys using any type of GT40 head, it's been recommended to use chevy valves to do the fly cuts

Tad bigger than the GT40 exhaust valve, which is of course bigger than the intake...so all your bases are covered and then some.
1987 20th Anniversary Cougar, 302 "5.0" GT-40 heads (F3ZE '93 Cobra) and TMoss Ported H.O. intake, H.O. camshaft
2.5" Duals, no cats, Flowmaster 40s, Richmond 3.73s w/ Trac-Lok, maxed out Baumann shift kit, 3000 RPM Dirty Dog non-lock TC
Aside from the Mustang crinkle headers, still looks like it's only 150 HP...
1988 Black XR7 Trick Flow top end, Tremec 3550
1988 Black XR7 Procharger P600B intercooled, Edelbrock Performer non-RPM heads, GT40 intake AOD, 13 PSI @5000 RPM. 93 octane

Explorer 302

Reply #16 –
that's why they say to use GM valves.. lol of course valves from a specific head, but i forget what head/year exactly.. never put much thought into it, since i don't deal with the SO pistons
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

Explorer 302

Reply #17 –
Quote from: Bruce M;377575
They will with the stock cam. But you'll need GT40P headers. The plugs fit the exhaust manifold with the P heads. I was going to run a set of P heads on my engine but the stock manifold would'nt clear and I didnt have money for headers so I used E7s. I have a set of GT40P heads and headers I just bought last payday that will recieve big valves and screw in studs.

The need for special headers is a myth. All you need are 90 degree plug boots and you're golden. I have the P engine, and BBK headers. Instead of spending funds on different headers, I bought new plug wires with 90 degree boots and never looked back. No burnt wires either.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Explorer 302

Reply #18 –
The plugs are close though still right? As in, no taking plugs out without removing the headers first? Granted in this day plugs ought to last you 100k.
1987 20th Anniversary Cougar, 302 "5.0" GT-40 heads (F3ZE '93 Cobra) and TMoss Ported H.O. intake, H.O. camshaft
2.5" Duals, no cats, Flowmaster 40s, Richmond 3.73s w/ Trac-Lok, maxed out Baumann shift kit, 3000 RPM Dirty Dog non-lock TC
Aside from the Mustang crinkle headers, still looks like it's only 150 HP...
1988 Black XR7 Trick Flow top end, Tremec 3550
1988 Black XR7 Procharger P600B intercooled, Edelbrock Performer non-RPM heads, GT40 intake AOD, 13 PSI @5000 RPM. 93 octane

Explorer 302

Reply #19 –
I can swap my plugs with the headers in place.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Explorer 302

Reply #20 –
vinnie, there are some headers that do interfere with the plugs, yours aren't 1 of them.. stock 5.0 stang headers WILL NOT work, as the primary tubes run directly into the plug's 'area'.. so you're right in saying it's false, but there's a bit of truth behind it, as some headers will interfere
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

Explorer 302

Reply #21 –
Ahhh yea see I would cheap out and find stock stang shorties :hick: lol. But at least widely available ones like BBK's are good, not like there's ONE brand/style of header and you have to hunt it down.
1987 20th Anniversary Cougar, 302 "5.0" GT-40 heads (F3ZE '93 Cobra) and TMoss Ported H.O. intake, H.O. camshaft
2.5" Duals, no cats, Flowmaster 40s, Richmond 3.73s w/ Trac-Lok, maxed out Baumann shift kit, 3000 RPM Dirty Dog non-lock TC
Aside from the Mustang crinkle headers, still looks like it's only 150 HP...
1988 Black XR7 Trick Flow top end, Tremec 3550
1988 Black XR7 Procharger P600B intercooled, Edelbrock Performer non-RPM heads, GT40 intake AOD, 13 PSI @5000 RPM. 93 octane

Explorer 302

Reply #22 –
BBK and Ford Racing headers are the only ones that I know of that fit P heads.
88 Cougar LS 5.0 .030 over, ported E7s with GT40 valves & trickflow springs, Proform roller rockers, HO cam, removed air silencer, K&N filter, smog pump delete, 2.25" dual flowmasters, Pacestter H-pipe & headers, HO computer, 65mm TB, Explorer intake, 19# injecters, 3.45s, rebuilt posi, and TCI shift kit.

Explorer 302

Reply #23 –
Quote from: ZondaC12;377645
Ahhh yea see I would cheap out and find stock stang shorties :hick: lol. But at least widely available ones like BBK's are good, not like there's ONE brand/style of header and you have to hunt it down.

  lol Thats what I am running now. Stock mustang shorties.

Explorer 302

Reply #24 –
Hi, its been awhile since I've been on this forum. Nice to see its still here! So from this thread I take it that GT40P's will not work with stock SO pistons, Stock HO cam and 1.6's without valve reliefs. That sucks as I just pulled a set from the local yard. Likewise the stock mustang HO headers wont work either? Thought I saw a set work as I was googling. Oh well. I'm a little concerned about grinding valve reliefs in the stock SO pistons as the top faces don't seem very thick when compared to the 86 flat tops (with reliefs) I have in my mustang. How deep can be cut?
87 Sport with HO cam, 19# injectors,TB+Upper Intake,87 Mustang EEC, Cloyes double roller timing chain, Kirban adj. fuel regulator and Autometer fuel pres. guage, HO shorty headers + LSC H-pipe and Dynomax Super Turbo lers, Ford Racing 9mm wires, K&N filter / no air resonator, 8.8 XR7 Diff., V rated tires, Project ongoing.

Explorer 302

Reply #25 –
Everyone should read through all of this........

http://forums.corral.net/forums/5-0-5-8-engine-tech/1014187-anything-everything-gt40p.html
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..