How much is a new LT1 engine cost, for a 1987 IROC?

 

your left nut

 

If you're talking about a Gen I or Gen II LT1, they've been out of production for quite some time.

If you're talking about a Gen V LT1, they're about $10,000 plus countless other necessary parts and modifications that you'll need to put it in a third gen.

http://www.karlperformanceparts.com/...4aAv8LEALw_wcB

 

The original Gen1 LT1 was an early 70's carb'd performance engine.
The Gen2 LT1 was an early to mid 90's EFI engine.

Neither are currently sold new, and there's no real benefit to swapping in either of them if you came across one even for free.

The Gen4 LT1 is currently sold in Camaros and Corvettes (I believe) and I'd assume it's available as a crate engine. It would make a heck of an upgrade but there is a LOT of work needed to do this, as has been mentioned.

NONE of these ever came in a thirdgen F-body.

A stock/re-manufactured 305 or 350 originally from an 87 Iroc could probably be had for a bit under $2000 as a long block. You just put your intake and accessories back on it.

 

I definitely disagree. The 90s LT1 may be a redheaded stepchild, but it's still far better than what came from the 80s. Having driven many of both and owned a few I'd take an LT1 every single time.

 

I can refute LT1 superiority claims with a single term. Optispark.

/thread.

 

Blown way out of proportion by LS1 nut huggers trying to claim superiority. I never had an issue.
Every new generation likes to berate the previous to feel better about themselves.
They’re all SBCs and have enough aftermarket to fix any issue, factual or fabricated.

 

Reverse cooling is the only benefit that an LT has over a typical SBC. Optispark has it's issues well documented. The LT is a foot note engine.

 

Well the optispark can have issues, if you already have an LT1 with one though you can now ditch the optispark with a bolt on LSx kit from Torqhead. Sorry for the hijack.

 

I can attest to that !!