Has anyone used these oil filter adaptors for a 284 swap? I know about the 88 rheatta one but what about these?
http://www.gmtuners.com/swap/3800.htm
3800-compatible Oil Filter Adapters
Below are some examples of the different oil filter adapters GM makes that will work with the 3800 Series I and II, as well as the 3300 and 3.0L V6 90 degree engines.
This adapter can be found on 85-87 N-body (Grand Am) cars on the 3.0L 90 degree V6 engine. This adapter will clear the 4T60/440T4 auto transmission (not tested on the 4T60-E or 65-E), and puts the oil filter right next to the oil drain plug. Because of ground clearance, only the PF47 (short) style oil filter can be used.


This adapter can be found on 3800 (series I and II) equipped w-body cars. This style routes the filter above the right CV axle.


This adapter can be found on some Full-size GM cars equipped with the 3800 engine. This design routes the filter right next to the crank balancer above the cradle frame rail. Because of space constraints, you may only be able to use the PF47 (short) style filter.


This adapter is most commonly found on H-body GM FWD cars like the 96 Olds Eighty-Eight. This design kicks the filter back towards the oil pan behind the balancer. This will work in the Fiero, however, if the use of the long style filter (PF52) is desired, you may need to cut away the left side cradle mount. If your exhaust is routed like the stock Fiero, you may also have issues in trying to use this adapter.



This oil filter adapter is from an F-body L36 3800. GM p/n: 12569217. Retail price is about $34. This adapter will offer plenty of clearance for most any Fiero swap although you may not be able to use the long PF52 oil filter due to clearance issues with the chassis frame rail.