http://cgi.ebay.com/ebaymotors/Thunderbird-SC-Mustang-Magnesium-Valve-Covers-3-8-V6_W0QQcmdZViewItemQQhashZitem3a569b1683QQitemZ250561107587QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
Those are the same valve covers as found on all 89+ 3.8's (my '91 had 'em), and they will not fit 88 and older engines. The heads are a different shape - older ones have curved top corners, while newer ones had flat, angular ones.
Come to think of it, they might fit an 88 engine (first year for MPFI) but I am not sure.
Hey,I tried.LOL.
Yey Yep,
Early 232's Use more rounded covers like these:
http://cgi.ebay.com/ebaymotors/Ford-Small-Block-82-83-84-85-V6-Tall-Valve-Covers-SBF_W0QQcmdZViewItemQQhashZitem588560bf03QQitemZ380194832131QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
Although i do believe your correct on the 88's using the style Vinnie posted. :cheers: