Is It True
#21
VIP Member
![](https://www.offshoreonly.com/forums/images/icons/prop.gif)
![Default](/forums/images/icons/icon1.gif)
Originally Posted by BY U BOY
THE MOTOR IS STOCK UNTILL NEXT WED. IDECIDED TO GO WIHT 502 ALUMINUM HEADS, MARINE POWER ALUMINUM MANIFOLDS SND RISERS, 750 HOLLEY, MSD, AND A NEW CAM. I THINK THIS SHOULD PUT ME AROUND 450-475HP. WITH THESE UPGRADES SHOULD I USE SYNTHETIC AND WHAT WOULD BE THE BEST SEALS TO USE.
#22
Registered
Thread Starter
![Default](/forums/images/icons/icon1.gif)
Im Not Pulling The Motor So Thats A No Go On The Main Seal And Oil Pan. I Have Decided That It Is Not Worth Using The Synthetic I'll Stick With The 40w.
#23
Geronimo36
![](https://www.offshoreonly.com/forums/images/icons/gold_member_star.gif)
![Default](/forums/images/icons/icon1.gif)
Originally Posted by BY U BOY
Im Not Pulling The Motor So Thats A No Go On The Main Seal And Oil Pan. I Have Decided That It Is Not Worth Using The Synthetic I'll Stick With The 40w.
If it's a one piece timing cover you'll need to to drop the oil pan. It is best if you pulled the motor for that. With that being said, change the main seal while you're at it.