Heads for a 350 chevy
 

Anyone got any suggestions for good heads for a 350 bored 40 over looking for someplace that has something reasonably priced



Thanks

Re: Heads for a 350 chevy
 

Vortecs, you can't go wrong with them!

Re: Heads for a 350 chevy
 

Ditto on the Vortecs. You will never find a better bang for the buck, EVER! You have to run a Vortec style intake which is available from every manufacturer and also centerbolt valve covers. Dont let the valve size fool you. They flow well.

Re: Heads for a 350 chevy
 

I put a pair of Summit brand heads on my 350 in my 'burb. The day after I got back from B'ville this summer white smoke came out of the right bank, it was a cracked head. They were double humps and it was more reasonable to replace them with the Summits that find a head and have them both completely redone. I drive my 'burb daily and they seem to be working well.

Re: Heads for a 350 chevy
 

X3 on the Vortecs.

Re: Heads for a 350 chevy
 

I would go to a local engine shop and find some rebuild stock 305 heads that are 64 cc, with the largest valve they have and buy them. For about $200, you will really wake your truck up. This will bump your compression over 10:1.

Re: Heads for a 350 chevy
 

Check Competition Products Web Site for Dart Iron heads I think you can buy them cheaper than vortecs and they are very nice . They are priced depending on what you want . The bigger and badder you want the more money you spend . You don't have to run a vortec intake either . My 2 Cents . Bob

Re: Heads for a 350 chevy
 

I have a set of great heads for you!!!!!!


http://67-72chevytrucks.com/vboard/s...ll+block+heads

Re: Heads for a 350 chevy
 

Maybe the best money I spent...http://store.summitracing.com/partde...5&autoview=sku

Re: Heads for a 350 chevy
 

It depends on what you want to spend, and what is in your engine right now. I say if it is mildly hopped up go with stock 64cc 305 heads if you are on a budget. Thats what I have and I still managed to run a 13.8 sec 1/4 mile. If you have the extra money go with the world product heads, there going to be better. Just my .02

Re: Heads for a 350 chevy
 

I would not recommend these they are 76 cc.

Re: Heads for a 350 chevy
 

I would completely disagree with this one. Read my post titled Engine Run-on. I am having a huge issue with engine run-on right now on 350 with 305 heads and an rv cam. I am hoping I octane fuel will fix the issue.

I would also agree with vortec heads! All day long the best bang for your buck. And if yo don't like centerbolt heads, no worries. They have an adapter so you can run your regular side bolt valve covers. JMHO.
SHawn

Re: Heads for a 350 chevy
 

By the time you get the heads machined for screw in rocker studs, machined spring pockets for bigger springs and valves and a valve job (assuming you don't want to stick with the 1.94"/1.50") its better to go with Dart Iron Eagles. They will cost around $950 for a complete set with your spring choice and choice of valves 2.02 or 2.05 .

My car with a roller cam and these heads untouched puts down 350hp to the wheels.

Re: Heads for a 350 chevy
 

For the record guys, 305 have heads do not have 64cc chambers. They range from 58cc - 60cc chambers. Companies like Aerohead and others enlarge the chambers with valve deshrouding cutters and make them 64cc but they come from the factory smaller. The run-on problem they are notorious for is due to a small chamber with severely shrouded valves that create excessive heat. This causes the "dieseling" effect. If the timing is kept on the low side they do perform OK on a 350, but unless I was on a shoestring budget and had them laying around, I'd go another route. I've ran them in past on 327's and 350's with pretty good results, but I wouldn't buy a set and spend money on valve job when Vortecs and others can be bought so reasonably. They actually work really well on a 307 though...

Re: Heads for a 350 chevy
 

I agree !! Plus Dart are made in the USA unlike World (china ) Not saying anthing against the vortec's but bang for your buck I'd go with Dart

Re: Heads for a 350 chevy
 

:agree:

Re: Heads for a 350 chevy
 

I love Darts too. In fact, I'm running 215cc Iron Eagles on the 383 in my '82 Z28 drag car. However, for a daily driven street engine, I prefer the Vortecs because of the tall high-flow smaller runner intake ports and the fast burn combustion chamber. The Vortecs bone stock with 170cc intake runners with 1.94/1.50 seriously outflow the Dart S/S's and World S/R heads and give 200cc Iron Eagles and World Sportsman II's all they want up to .500" lift. Their bigger heads kill the Vortec, but Dart nor World makes a comparable sized head that will perform as well or be as efficient as the Vortec. I know that sounds crazy, but it is true. That's why I'm so high on the Vortec. Check out this chart, because I know you racer types (Bob) are gonna want proof!;):lol:

Re: Heads for a 350 chevy
 

Dart Iron Eagle all the way...

Re: Heads for a 350 chevy
 

I didn't need proof ;) I was just giving my opinion I believe the vortec heads are great . I run a bigger than .500 cam and with no cam specs on his motor was just giving another option . I personally would steer clear of World because I try to buy made in the USA Parts but to each his own . Thanks for the cool spec sheet !! Bob

Re: Heads for a 350 chevy
 

Yeah, without knowing his cam specs, gears, and what he wants out of the truck, its hard to say which would be better. If it were going to be a quick street/strip truck or weekend warrior, I too would go with 200cc Iron Eagles. You can always grow into a bigger head, and at some point you're gonna havta go faster, right?;)

I'm building an engine for my red '69 right now, and its going to be strictly a daily driver, but I do want more power than the 76cc headed smog 350 has that's in it now. I'm basically building a carb'd version of the GMPP Ram Jet 350. It's a going to be a 4 valve relief flattop .030" 1 piece seal 350 with Vortecs and Ram Jet hydraulic roller P/N 14097395. It is a mild, smooth idling cam but makes great torque and very good HP for what it is. This is a proven combination, and I know it will make my truck much more fun to drive. With the same heads and cam and 9.4 CR, the Ram Jet 350 is advertised at 350HP and 400ft lb. I'm going to be running an dual plane aluminum intake and Q jet with ram horns and 2.5" duals, so I won't quite make those numbers, but it will be very stout nonetheless.

Re: Heads for a 350 chevy
 

This is all I have ever ran and I have never had a problem with engine run on, it will require you to adjust your timing to get the best performance. As far as screw in studs, you don't need them unless you are running a highlift cam or going full roller, I have 480 lift cam right now with press in studs, going strong for 10 years. I have always been on a tight budget and these heads have always performed very well.

Re: Heads for a 350 chevy
 

On a mild to moderate build with less than 10 to 1 , you cannot beat the Vortec head, I have seen flow data on "worked double humps" VS. Vortec's and #'s dont lie, Vortec's win, you cannot beat the engineering in those heads without spending $1,000 + . You will as stated need a new intake manifold and some hardware

Re: Heads for a 350 chevy
 

I am a big fan of dart, plus thumbs up on made in America, I would rather have a slower ride and keep some slub here working rather then go fast and keep some party boss in China slurping down eel eyeballs. Personally, I would buy a used set, guys are getting rid of extra go fast parts now for money to pay the rent.

Re: Heads for a 350 chevy
 

Hard to beat the Vortecs.

Here's a link to get the kit to change over.
With Edelbrock Performer intake: http://paceperformance.com/index.asp...D&ProdID=73011
With Edelbrock Performer RPM intake: http://paceperformance.com/index.asp...D&ProdID=18329

Of course if you need everything for the top end: http://paceperformance.com/index.asp...&ProdID=219069

Re: Heads for a 350 chevy
 

new vortech heads with a 5 angle valve job and screw in rocker studs, wich you'll need when crossing over the .500 in lift. https://www.patriot-performance.com/...ome.php?cat=76

These heads are tapped for the old andnew type intake manifold, also perimeter v/c or centerbolt v/c.

Re: Heads for a 350 chevy
 

Can't go wrong here--->http://cgi.ebay.com/ebaymotors/PERFO...QQcmdZViewItem

I have bought from these folks a couple of times. And will be buying a set of these in the next couple of months. Great prices, great machine work, and a good warranty to boot! If I remember correctly they're out of Texas.

Re: Heads for a 350 chevy
 

now that's a great deal. i spent a little more than that getting my stock heads rebuilt after having trouble with two sets of vortecs.

Re: Heads for a 350 chevy
 

Not a bad deal for 700 bucks complete. The intake runner is on the smaller side being only 185cc. If your not looking to make any huge power numbers than these heads are probably the best deal out there. Probably support 450hp NA. (referring to the patriot vortecs)

Re: Heads for a 350 chevy
 

FYI:
I just got off the phone with World Products...These heads are still made in Michigan.

Re: Heads for a 350 chevy
 

Be weary of the dual bolt pattern though. We put a set of those on a '91 Formula and the intake ports were taller than the stock TPI intake casting. Meaning the with intake setting on it, you could see about .030" of the top of the intake port. We had to order a Vortec TPI base to make it work. You could get away with a Wieand Team G or a Victor Jr that have bigger ports and raised casting, but don't think you can put a stock intake or even a Edelbrock Performer on there and go. I will not work. The intake ports are about .170" taller than a normal stock SBC port.

Otherwise, they are wonderful heads. That 'bird is one the stoutest N/A TPI cars you'll see.

Re: Heads for a 350 chevy
 

Im liking this idea do you think that would be enough for a good street truck right now i just have the stock heads from a 72 chevy

Re: Heads for a 350 chevy
 

I also assume i could use my stock intake and edelbrock elite valve covers?

Also what roller rockers and rods would go good with this?

Re: Heads for a 350 chevy
 

dude i have patriot performance aluminum heads on my patriot crate lol and i couldnt be happier damn nice heads .

Re: Heads for a 350 chevy
 

Those are the 305 heads (416 and 434 castings) that have had the chambers enlarged and bigger valves added. We've run them before, and they run stronger than a stock old 76cc truck, but they still are have a small intake runner and are limited. They are OK for pepping up a stock engine, but don't expect big HP out of them. We flowbenched a set one time, they and maxed out about 210 cfm at 25" H20 at .500 lift. They are OK for $300 though.

Re: Heads for a 350 chevy
 

Well im not going to be making like a drag car or anything but i dont want to be limited if those arent good enough. If im going to spend 500 might as well spend more now and not later

Any other suggestions besides these vortecs ?

http://paceperformance.com/index.asp...D&ProdID=73011

I was thinking i might buy it individually so i can put different roller rockers ect. Thats probably at the top of my budget

Re: Heads for a 350 chevy
 

If i get a set of just standard vortec heads its best to get the center bolt correct?

Re: Heads for a 350 chevy
 

Most are probally made with centerbolt. If you go to a local pick and pull yard and fing a set. Have the machine shop check them and drill and tap the rocker studs.

I had no idea the intake ports were that high on the pp vortecs, good call.

Re: Heads for a 350 chevy
 

Allyou ever wanted to know about Vortec's, These really are the best value for the money, IMO, you can find intakes on EBAY or RACINGJUNK.COM, PURPOSEBUILT.ORG, CRAIGSLIST etc...

Pay attention to the casting #'s to avoid !!!!!!! These might be why there have been some naysayers in the post.

http://www.chevyhiperformance.com/ho...458/index.html

Re: Heads for a 350 chevy
 

How much horsepower are you looking for? I reworked my own set of the 416 heads, and enlarged the whole chamber instead of just unshrouding the valves. And mine were only 1.94/1.50. I also port matched, and enlarged the intake runners to 170cc. They were on about a 350 horse 350, the truck would run a high 14 sec 1/4 mile.

Re: Heads for a 350 chevy
 

http://store.summitracing.com/partde...5&autoview=sku


Click the link, and they had a save $50 on a $200 order, so you'd get the vortecs for closer to $500 for the set and new, just get the self aligning rockers, and a vortec specific intake, and if you want to use the valve covers you have, they make an adapter to go from center bolt to perimeter so you can use them on the Vortec heads, trust me 30+hp over any of these stock heads mentioned here and better performance than even the Dart's SR's etc, etc under or at .500 lift, after that the Dart's etc out perform the Vortecs, but over .500 lift is not really a daily driven street motor either, plus 6,000+ rpm and that is the only way/time any other head out does the vortecs!!

GET THEM!!