Cascade Crew

'92 camaro boss · Posted: Wed Mar 03, 2010 11:08 pm Post subject: 461 heads

if the date on the head is h 18 5

would that be 65?

"pair of Chevy Performance 2.02 / 64cc heads. These heads are like new and ready to use. The casting number is #3782461"

does that sound right? what i've found so far everything stock was 1.94, not 2.02

chevymad · Posted: Wed Mar 03, 2010 11:34 pm Post subject:

They're camelhumps. None of your accessories will bolt to them. You would need new alternator and power steering brackets, along with a different water pump. And they're 40+ year old technology. They don't have hardened seats for unleaded gas either. Skip them.

chevymad · Posted: Wed Mar 03, 2010 11:34 pm Post subject:

This for your 68 velle? If so maybe your brackets will work. But they still won't have hardened seats.

'92 camaro boss · Posted: Wed Mar 03, 2010 11:48 pm Post subject:

no it's the 71, 68 left as quick as it came.

guess the price reflects what you said there.

i was just looking for cheap-ish decent factory heads (i know 1 of you told me that's the 1 place not to skimp)

i found a guy that claim's he has a bunch heads, what would be a set to look out for?

Quasi-Traction · Posted: Thu Mar 04, 2010 1:19 pm Post subject:

'92 camaro boss · Posted: Thu Mar 04, 2010 2:07 pm Post subject:

well i went to this shop today and he was telling me that this set "186" casting was a great set of stock heads, their 1.94's and they were more hi-po. i'm just looking anymore for somthing that's going to flow good.

i get the vortec technology but as far as putting 350hp to the ground. but beyond vortec isn't the flow just as good as a set of dart or afr heads?

i looked but can't find much info on the 186 heads, and this guy also said as far as 1.94 and 2.02 heads 2.02's are really a waste unless it's a higher performance engine.

Twilightoptics · Posted: Thu Mar 04, 2010 2:19 pm Post subject:

chevymad · Posted: Thu Mar 04, 2010 6:14 pm Post subject:

As Paul's pointing out, flow isnt everything in a head. One of the areas they've seen the biggest gains in the last 20 years is in chamber design. The shape of the combustion chamber affects how efficiently the air/fuel mixture is burnt. The high performance vortec heads are called fast burns for a reason. A head that burns very efficiently will require less timing then an older head. It will have less tendency to knock at a higher compression. Several positive things. Really, by the time you get those old heads fixed up, you'll have the same or more money into them then if you just get good heads to start with. There's alot of nice aftermarket heads on the market now. They may not seem like it, but they're really a bargain.

Now if you just can't swing it, you can't.. Get the best you can afford. But make sure you price everything out before you buy something then find it was just a waste of money.

'92 camaro boss · Posted: Thu Mar 04, 2010 6:34 pm Post subject:

Ok, the biggest deal i have is if i buy these 186 heads, and have them built, i can pay payment at the shop to have them rebuilt.

can you point me in the direction of a set of decent heads that won't cost an arm and a leg?

I've never bought anything online, or thru catalogs before or online, online seems like a big risk to me, most i've ever done, was bought somthing from alphius and he made it a breeze. should add, i do not have a credit card, or debit.

chevymad · Posted: Thu Mar 04, 2010 6:55 pm Post subject:

Have you priced out what they'll cost to build? Do they need valves? Do they have hardened seats or need any seats? Are the guides good or will those need to be replaced? If they need much work at all, you will quickly add up to several hundred dollars easy. You'll need a set of springs to match your cam too. If they're in good shape though, they may be the deal you're looking for.

There's lots of ways to pay for things. Pre-paid cards.. get a bank account with a debit then save the dough. Get a bank account and associate it with paypal.. Money orders and checks still work even, you just have to wait longer.

I've bought lots of stuff online. Ebay can be a good source.. just watch the persons feedback, and how much they actually sell. Watch shipping charges on ebay though.

Vortec heads came on 96-2000 chevy trucks. Try your local junkyards. But remember that a used head could require the same machine work as the old heads unless you find a low mileage pair. Also they will need some machine work to work with large cams and a new set of valve springs.

I guess first of all.. what is your budget?

Here's a summit vortec head.. assembled for $309 each. You would need a set of guided rockers, a vortec intake, and center bolt valve covers to use them. I'd probably just go to the junkyard if I was on a tight budget. http://www.summitracing.com/parts/SUM-151124/

'92 camaro boss · Posted: Thu Mar 04, 2010 7:11 pm Post subject:

yea for the price of those heads you just posted would be right around what i'd be with after a rebuild. for the heads to be totally rebuilt on my el camino i paid about $580 for them.

i'm sure the set i'd be picking up from this guy would need a rebuild, he wants $200 for them. so that would be well over the price of the heads in the end, but it'd be a step by step, buy them, send them in, pay payments.

let's say i were to buy those heads you just posted, and were to buy the intake, i have a holly 650 sitting here all ready to go.

what sort of cam should i be looking for to achieve my overall goal of at least 330hp at the rear tires.

on a side note: i believe you mentioned what cam you select should be more-so matched with the tranny you got, it has a th350 right now, but when the funds come it's getting a Muncie put in it. would that be a major factor or no?..

didn't realize till i got this car what all different factors made such drastic changes to results of power.

sure my questions are getting old, some stupid, but thanks for bearing with me lol

chevymad · Posted: Thu Mar 04, 2010 7:21 pm Post subject:

Most critical info we'll need is the rear end ratio you will run and what your static compression is. Then we can pick a cam.

I'm going to guess at getting compression somewhere in the mid 9's. and a gear ratio 3.42-4.11. Myself, i'd be looking at something like a comp xe274, or a lunati voodoo equivalent, or maybe a solid flat tappet just a hair bigger. The comp 274 seems to be a good performer with the vortecs.

Now hopefully Paul(twilightoptics) and Zac(Izcain) will post up some cam recommendations. They both have more real world experience and proven success with this type of performance motor then I do. Also maybe Rod(rjmcgee) can post up info on his combo. It's quite similar to what you're wanting to do.