BlueMaxCougar

I've searched off and on for a couple days and can't find the A to my Q.What should be the minimum oil pan clearance allowed for both poly mounts and original rubber 5.3L truck mounts?Are the truck mounts liquid filled for dampening?I would hate to blow an oil filled mount, causing the cast oil pan hit the cross member and crack.I am thinking I will run the good ole poly leaf spring bushing as an engine mount.I may stick with solid rubber Cougar/T-bird mounts.We shall see.

71ANTICARB

iTrader: (23)

I have bout 3/8" on mine, see sig. Using a LH8 waste of money pan.

Doug G

Poly mounts and have ⅛"+ or so...but still in install mode

BlueMaxCougar

LH8 pan,that's on the H3,correct?Why would it be a waste?I'm new to the LS swap scene,so please for give my ignorant questions.I have been searching and reading for the past few weeks.I finally decided to join.

Doug G,thanks.That seems a little tight even for poly mounts.


My ride is a 90 Mercury Cougar.A Ford 5.0 will barely clear the hood and after investigating a lot,a 5.8 Ford will not clear the stock hood.I despise cowl induction hoods.Besides,my car is to heavy for a wimpy stock SBF and cost way to much to build an SBF.I am following this members build because we have the same basic chassis.If you can consider a unibody a chassis.

71ANTICARB

iTrader: (23)

Yeah the LH8 and H3 are the same pan. I consider it a waste because there not a considerable amount of height difference between it and the truck pan, it is not IMO the "swap" pan GM billed it as. I would recommend investing in one of the many "true" swap pans available from many of the sponsors.

BlueMaxCougar

Thanks for clearing that up.That's good info.I know the truck pan will hang to low on my car.Since the LH8/H3 pan isn't much shorter,I'll look into a true swap pan.As long as I can get 5 to 6 quarts of oil in there,I think I'll be alright.I'm shooting for a good daily driver with fuel economy in mind and hoping to end up close to 400HP.If I can get better than 16/21 fuel economy with the LS,I'll be happy.I just gotta keep all under the hood.