The cost to do such a thing depends on a lot of factors.

(1) Is there anything else that would need to be addressed while in there? Such as ignition problems, distributor ect?

(2) How many mile do you have on your vehicle? Will it need new roller lifters?

(3) Do you have roller rocker arms currently installed? If not, you will need to retrofit the rocker arms to a 1.6 ratio roller rocker arm to get the advertised lift.

The labor hours to install an aftermarket camshaft are not published because the LT1's never came with the roller rocker arms. The conversion process along with adjustment process are usually in addition to book time.

Also important to consider is additionals such as Oil, Filter, valve, timing cover and intake gaskets, along with seals for the distributor, water pump drive and crankshaft. A new timing chain and gears would be advised depending on mileage with a new chain at the minimum. Spark plugs, antifreeze and supplies are all things that can really rack up additional cost. Most all roller rocker arms require aftermarket valve covers to clear the bulk of the new arms.

I would say that "ball park" you could have $1200-$2200 wrapped up in this process and even more if you planned on having the work done by a mechanic. I think a new LT4 hot cam is near the $400 mark itself. Add in rocker arms, lifters, gaskets, fluids, guides and bolts, valve covers and it's easy to see the cost could crest the $2200 mark in just parts depending on what brands you go with; and thats not even including the 10-12 hours in labor!

That is a pretty good price. I have had words with ole' Scroggin Dicky on another forum when he was selling off NOS LT1 engines.

That kit does NOT include everything you need to install it. Sorry to say it's missing guides, head studs and push rods. It's also missing all of the gaskets and seals that would be required, along with the valve covers to clear the bulky roller rocker arms.

You should also know that if that kit has the self aligning roller rocker tips, they were re-called because they came apart and detroyed a lot of engines. Be sure that whoever is selling it is not bleeding off New Old Stock supplies that have been proven to fail. Not many people know about it because the LT4 engine was the only engines that come with roller rocker arms. You could buy Corvette LT4 valve covers or custom cut another set of polished aluminum ones like we do. Some people have hacked up factory covers to clear, but unless you double gasket the sucker, its going to brush the top. Also the supporting must be cut up inside the valve cover and this prevents it from distributing the pressure even, thus making the set up very leak prone.

Dont forget to budget for oil, filter, antifreeze, spark plugs, wires and a distributor if you have 98,000 miles. 

That's a pretty good deal for that LT4 conversion kit. Providing the kit doesnt consist of the failure prone self aligning rocker arms I might even be interested in one of them at that ultra low price. I think that price is about $200-$300 less than list.

Lets do the math, 12 hours X $100 per hour = $1200 + $570 (GMPP LT4 KIT) = $1,700.00 not including gaskets, seals, oil, filter, antifreeze, timing chain, valve covers, pushrod guides, studs, and possible plugs and distributor if your smart and it's looking like your well above $2800.00

I think I just realized why this kit is way underpriced, it does not include the gasket kit like the original ones offered by GMPP. I would question if this kit is being put together buy aftermarket venders of GMPP.  

Keep researching and you will be sure to get the best bang for the buck. Let us know how it all turns out too.

Back in the day we offered complete LT4 clone engines for $3800 complete with heads, re-ground cams, higher compression pistons, head work and all new bearings, rings, pump, seals, gaskets ect. Were still in the process of finishing a few of them up, and I seriously doubt we could ever offer them for sale at that cost again.

I just realized the question about how much to convert and LT1 to LT4 upper end specs has been asked and answered in the past.

Here is the link.

http://autotrend.activeboard.com/forum.spark?aBID=91042&p=3&topicID=16108060

The dollar amount came in a hair under $3400

Sounds like you are well on your way to getting er' done!

I agree you can pressurize the cylinder to replace the valve springs, however it will be a pain in the ass given the ultra low stance of the Camaro. It's going to be a back breaker for anyone that has to do this job, regardless what path they take, outside of droping the engine out the bottom and you might find some mechanics will require this.

Not a lot of shops will perform performance work, let alone break their backs to save you labor cost.

The timing cover kit will not be enough seals. The intake has to come off if you are replacing the cam even if you do use your old push rods and lifters, which I do not recommend doing if your installing a brand new cam. So you will need an intake kit, and anyone that installs new spings without replacing at least the valve seals is asking for trouble. You should have one converted solid lifter to check for valve binding. Sometimes you have to shim the spring. What I am saying is most people will agree that at almost 100K miles a head job is in order. No pun intended.

Let us know how it goes. I am a big fan of photos and progress!