Curious if there is any performance or dress up kits for the 265 V8 lil guy?
Ditto.....the exhaust manifolds are the same so Headers should bolt right up.To put it briefly, again, YES.
You want more Pep from a 4.3 , the mods mentioned will maybe give some benefit. No numbers to back this up and it could have been a Placebo effect with the car at least sounding better with Duals and looking better in the engine area with the CAI kit. Doubt there was much real world difference.Not looking to put it on a drag strip, just a little more pep would be nice.
The weak point is not the block, it is the head gaskets. Either engine will push out the gasket before the block will break. It is always better to have more cubes.Doesn't the 4.3 v8 having smaller bores and lots of metal between cylinders make it an excellent candidate for turbocharging?
If you think about it, if there was a power race between 4.3 v8 and 5.7 v8, the 4.3 should theoretically be able to handle more forced induction, wouldn't it?
There is you answer.If you plan on keeping the engine and really want to see some Pep out of it, consider changing the rear gears. My original rear was a puny 7.5" with a 2.92 gear. Drop in a larger rear from an Impala/Caprice with a 3.42 or 3.73 and be prepared to smile more. Keep in mind that if you do this, you may need to also swap the drive shaft as the one for the 7.5" Pumpkin is too long for the 8.5" Pumpkin.
OK didn't know that, thought the blocks were identical.There is you answer.
Put some gear in it, get some PCM tuning done,
If it is a 94-95 , BUY the tuning cable, don't send out your PCM
If the day comes you really need more power and do go with more engine, the money spent on the 8.5 diff will not be wasted,
On the bore, the L99 is a different casting than the LT1.
It is not like it has super thick liners