5.7 Spark plug wire help please

[mtntrogger]

I am desperately in need of some help from you guys again. I was changing out the plugs on my Four Winns boat a few days ago, when I pulled one of the wires off, the connector broke off the wire inside the boot. I figured it might as well be time to swap out the wires. Initially I brought the broken wire to the auto store presuming they would just have a loose one sitting around to sell. HAHAHA. No luck with that, and to top it off they couldnt even order any for me. I got over anxious and ordered a set off amazon, which I am now sure are not the correct ones I need. The guy at the auto store, said the ones I need have a different connector on the distributor than a normal wire. My boat is a 2000/2001 Horizon 180, but it came with a 5.0 and the previous owner swapped it out for the 5.7, so this makes figuring out parts real tough. I figure as long as the thickness (8mm), lengths and connectors are correct I should be fine, but I am really struggling figuring out which ones I need. If anyone can help I would really appreciate it ! Thanks

 

[Bondo]

Ayuh,..... The 5.0l, 'n the 5.7l use the same wires,.....

 

[Bt Doctur]

and 7.4 wirees are bit longer

 

[mtntrogger]

Got it. Looks like its sierra 18-8836. The 5.0 was the 5.0L -I am assuming that the PO just swapped over the wires and dist when they replaced the engine with the 5.7, pretty standard practice.

 

[BRICH1260]

Small block wires should basically all be the same length. Most boat wires have a 90degree boot. So as long as your distributor ends are compatible with your cap, it should be a fairly easy process. Only remove one old wire at a time and use it to match up in length from the new wires and replace.