buy the heads from GM and save a whole bunch of money.
as in you get two heads from GM for between $800 and $900 (depending on sale or not) vs $900-$1000 for the exact same heads in a sierra box.
you still need to modify the heads with thread-in rocker studs and modified valve seals to run a...
unless you change the cam, the stock flat tappet cam from 1986 wont get you anything appreciable for power increase going to 1.52 or 1.6
now, if you change the cam, AND change the heads to vortec (requires an intake change). you can get some noticeable improvements.
being a 35 year old boat...
your best bet is to have your seats recovered. however being a 50 year old boat, you may need to completely rebuild them.
not sure what you think a new seat should cost. today, a really good helm seat for a center console boat is about $1500 just the vinyl and labor that goes into a jump...
first, never fill your boat with water. you now have water in areas that wont ever come out.
second, pull the garboard plug. you will most likely find that there is an issue with the transom.
for sealant, 3M 5200
yes, you always pre-drill holes. you also countersink the holes in the gel...
first welcome aboard
my first thought is you have a bad connection somewhere. start with cleaning every connection from the battery to the engine and up to the helm and back
if that doesnt do it, pull the plugs and try to crank. you may be hydrolocked
fuel injection does not get you any more power or fuel economy than a carburetor. it just costs a lot more.
later model Gen 1 GM motors are simply running Vortec heads
the latest models of motors are either LS series or LT series with variable valve timing
recommend you go with a pair of...
the pair from the machine shop should be about $400-$500 done
NASCAR has not run vortec heads.....ever.
late models and sportsman class did for a while prior to the rule change and every good machine shop that serviced the racers had several pair of heads done and ready to go with the ARP...
