Hello 3rd gen's, New to site, appreciate any help, purchased 1990 RS earlier this summer for $500, blown injected 6 cyl, body and interior perfect, installing 383 stroker, short block from Coast High Performance/Probe racing from Torrance, Ca. all forged , everything Balanced & BP'd,Trickflow 195 alum. heads, 2.02-1.60 valves, Crane cam, 480-495 lift, summit 1.5 roller rockers,Victor Jr. intake, 750 Holley DP, Accel Billet Dist., Raptor 4 700R4 Tranny, any way, will be 85 percent Daily Driver ,occasionally bracket racer, all new front end, springs ,sway bar, struts all new PST polyurethane in front, Was trying to order new motor mounts from PST and they tell me I have to know the correct size, I figured V8 mounts would be standard but they tell me there are different sizes, any body know what exact size I need for this engine, body combo, any info appreciated,

Welcome aboard thirdgen.org!

Sorry to hear you drew an ignorant customer service rep. There is only one "size" of V8 engine mount, but all you're going to get is the polyurethane inserts.

You do need to know the size of sway bar when you order poly sway bar mounts. In that regard, I would recommend you not go out and measure the bars on the car, but order new performance bars & mounts. The V6 stuff will be overwhelmed by your new engine (which sounds like a good combo, by the way).

Thanks for Reply and info five7kid, that's what I also thought, just gonna get it elsewhere, also already have new sway bar, inch and 7/8th for 350 and springs, actually whole front end kit. any way, thanks again for the help.