Bosch Platinum +4
 

Some guys down at the shop told me that the Bosch Plugs dont work well with the 5.0 HO engine. Is this a line of bullwater or do these guys know what they're talking about? Also, they said the motorcraft plugs were the best.

Those gimmick plugs are a waste of money. Motorcraft or autolite are what is usually recommended.

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Clint L.
White 95 Cobra #3637
58cc GT40X heads with mild porting, Crane 2031 cam, FRPP 65 TB, 1.7s, Cobra intake, homeade cold air, 155lph, pullies, Tokico Illuminas, C springs, GW lower control arms, Steeda CC plates, aluminum driveshaft, Steeda quadrant, MSD6A, Mac shorties, off road hpipe, 2 1/2 ultra flows w/ dumps, R hood, Euro clear corners, stock 3.08s
13.61 @ 104.7 w/ 2.22

autolite 13s or 23s

stick with motorcraft. I had some quality issues with autolights in the past.

I have the Bosh +4 platinums on a stock engine. I haven't had any problems or complaints for over 10K miles. I have MSD Blaster coil and Ford 9MM wires.

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Scott93GT
1993 Mustang GT
Silver CC/Titanium Accent GT, Black Clothe interior.
5 speed, 3.08's, 3 chamber Flows, K&N, Hurst Competition Plus.

1991 F150 4x4 XLT Lariat
Six Stick Regular Cab LWB Tow Vehicle

I put Bosch plugs in my stock '89 at about 20k 'cause I didn't want to change them often. I now have 70k on it, and have had no problems.

Keep in mind I don't run it hard or race. It's just plain 'ole stock as it came out of the box.

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'89 LX 5.0 - Original Owner
'94 E-150 Conversion Van

I've had them both, and I think they're both just fine.....but if you want to save a few $$$ then go w/ the motorsport. Bosch....NGK etc etc a lot more $$$ for the same results.

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'90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; fiberglass turbo hood; A/C-less; rear seat-less; cat-less; 2 chamber Flos; Corbeau racing seats (fronts);
30# injectors; 190 lb fp; FPR; TFS track heat Intake - 12.513 @ 112 mph (Pre-inj/fuelpump/FPR/intake)

i went with the motorcraft, the old ones looked pretty shitty and obviously needed replacing, but the car, not surprisingly, feels somewhere between the same and slightly smoother. Thanks all for the advice and input!