882 heads cracking up

If you are going to use a mild flat tappet cam the 882 heads are pretty good up to. Iv decided to trade it and and im trying to avoid having the same problem again with my new truck. History of the small block chevrolet ohv cylinder head. Many times the nicer hp 882 heads can be picked up. The 882 intake port is very close to that of the 624, the exhaust side is where the 882 is weaker. Small block chevy heads have been manufactured since 1955, and. I have never heard of a cracking problem in the 882s it might be if they were milled to death or angeled to get the chambers smaller. The 882 heads were prone to craking big time and i laugh my butt off when i see them posted as high performance race heads in the local paper and on ebay. Chevy heads 624 casting chevytalk free restoration.

If you want to only make 300hp, these heads will do it with some flat top pistons. I have a set of 487 heads bare, nothing has been done to them,if your interested. These heads are made of thinner castings and are prone to cracking. Watch big booty crackhead porn videos for free, here on.

Some of the heads with large flows and big runners are not going to be good street heads, since they will have slow flow through the runners at. If you can use headers, go with the 1 34 tube size unit. My 350q has 882 heads also so i am not sure how yours are a worse casting. Dave turned this hobby into his own fulltime business with his wife dede layer in 1984 in dayton, ohio. If you get too wild with porting, you run into overheating and cracking issues. The completed shortblock was equipped with a set of smogera 882 heads.

Cylinder head port volume car forums and automotive chat. Mar 14, 2010 882s are better if youre looking to port them or set them up for performance. This assures you of the highest value and quality in cast cylinder heads for chevrolet vehicles. In addition to being prone to cracking, the 882 heads offered a 1. The causes of cracking are all relatively simple and easy to prevent, except in the case of mechanical parts failure through no fault of the operator.

The 882 heads are common 76cc chamber heads, flow ok nothing great, i have 3 or 4 pair of the 882 heads and i cant give them away, i have them on my 355 sb nothing spectalure just a. Most cylinder heads are identified in a general sense from simply looking at them. They constitute the latermodel iron heads such as the 882, 441, and other casting. No other sex tube is more popular and features more chiropractic adjustment scenes than pornhub. Chevrolet vortec cylinder heads fast burn combustion chamber and highvelocity ports combine to produce big horsepower. Just be carefull if you sneeze on them they could crack. How to check aluminum heads for cracks it still runs. The main difference between the 882 and 993 heads in regards to cracking is the 882 feeds the exhaust crossover from both center exhaust valves as opposed to the 993 which feeds the crossover from just one. When performing your own check for cracks, you need a method of testing that does not use expensive equipment and works with a nonmagnetic metal. When performing your own check for cracks, you need a method of testing that does not use expensive equipment and works with a non.

I have no idea what heads are on my 350k but for them to be worse seems to be a long shot. There are a few common symptoms of a cracked engine head. The best factory heads are vortecs that came on the last 350s, but they take a specific intake and centerbolt valve covers. Headsup meaning in the cambridge english dictionary. And actually the 882 heads are not a crap casting just prone to cracking if overheated that being said dont over heat them. Sbc cylinder head identification crankshaft coalition wiki. The flow on the exhaust side is pretty poor, and the intake side is marginal at best.

Then, in 1996, gm came up with the l31 vortec engine package for lightduty trucks. Sep 16, 2011 even so, these heads also known as the 882 castings had a double heatriser passage and were prone to cracking because they ran so hot. If porting the vortec heads, a little clean up on the vortecs is alright. They are pocket ported on the exhaust side and have a fresh 3 angle valve job. Even so, these heads also known as the 882 castings had a double heatriser passage and were prone to cracking because they ran so hot.

Whatever you decide good luck and let us know how it turns out. Small chamber production on car cylinder heads by racerguy. Chevy performance sbc cast iron vortec cylinder heads jegs. Its been maybe 10 years since hot rod magazine did their head of the class article on small block chevy head flows. Some combos pick up 50 hp with a vortec head swap alone. Up to this point the 882s flow as good or better than. Heads up cylinder heads originated from a hobby of drag racing and tinkering with high horsepower engines by the late dave layer well over 50 years ago. Should be on the dyno in may if anyones interested ill post the old and new pulls are comparison. Chevy heads 624 casting chevytalk free restoration and. Browse through our impressive selection of porn videos in hd quality on any device you own. Unfortunately the 487 heads are very prone to cracking in the exhaust valve seats.

A cracked engine head is such a serious mechanical problem that it can severely impact a cars ability to perform properly or even to run at all. Engine info needed 350 k chris craft commander club. Use flat top or dished pistons to enhance flame travel and intake swirl. Chevy cylinder head identification small block casting. When i install 882s i use the intake manifold restrictors on. Our stock replacement cylinder heads live up to eqs reputation for quality parts and incredible service. Crack up meaning in the cambridge english dictionary. Many times the nicer hp 882 heads can be picked up cheap as people dont realize which version they have. The 882 heads are also prone to cracking in the exhaust ports.

Summit racing cast iron cylinder heads for small chevy sum. Americas favorite highperformance cast iron small block cylinder heads offer big power and bigger value. Open the exhaust port up, and match to headermanifold gasket. I know its silly, but i hesitate to have these heads checked for cracks because i. These heads are made of thinner castings and are prone to cracking as well. That additional heat concentrated in the center of the head is the main reason for the cracking problem. Dec 04, 2014 my 350q has 882 heads also so i am not sure how yours are a worse casting. Vortec heads can be mildly ported for additional performance and milled up to. I know the 882 heads would allow me to run 89 octane fuel but i am really not worrying too much about the fuel. You would be far better off with a later factory head casting with a few modifications or aftermarket heads. The lightweight are crack prone, the heavy are not. Sbc cylinder head info ive compiled the following information on sbc cylinder heads to help compare them. Verbedit crack up thirdperson singular simple present cracks up, present participle cracking up, simple past and past participle cracked up.

Some of the heads with large flows and big runners are not going to be good street heads, since they will have slow flow through the runners at street rpm. In fact, weve brought back classic chevy performance in a big way with these readytorun heads for small block chevy. There are two different types of 882s heavy and lightweight. They are light, crack prone, and flow like a stuffed nose. I think the reason this is common on both heads is that the 70s engines were set up with lean mixtures and retarded timing to get the exhaust temperatures higher for the early style catalytic converters. What makes an eq cylinder head better than the rest.

Think you have to scour the local bone yards to find a decent set of gms old double hump or fuelie cylinder head castings. This book appears to be a good source for information about alternative chevy heads. Youd be better of doing some port work and a good valve job on your 305 heads instead of bolting on those 882s. In fact, if youre ready to replace a worn out or cracked cylinder head, you wont find a better product available anywhere. Chevy cylinder head identification small block casting numbers, big block cylinder head, camel back heads, double hump heads. The 416 heads will bolt up and have much better port runners.

Mar, 2020 as a result, most motorists try to prevent cylinder head cracking, as an ounce of prevention in this case is worth many pounds of cure. I dont know, ive never seen the eq heads in person, but mopar action did a flow test blowout a couple years ago and flow was up quite a bit on the eq over the factory magnum head. They are a better flowing head than the 882, and less prone to cracking, etc. The cn 462624 is said to be very prone to cracking. Chevy cylinder head identification small block casting numbers. If porting the vortec heads, a little cleanup on the vortecs is alright. Im not here to cause a fight, but moper says the eq heads have stock ports. However, if you dramatically open up the ports you will lose the venturi effect in the intakes that makes them flow and perform as well as they do. The ports are just so big that itll kill the airspeed and have less torque at low rpm. Pre355hrtk1 350 horsepower 355 small block chevy crate engine duration.

Im currently toying around with a set of 882s for portingpractice, and they seem to be a decent casting for stock to mid performance use. Watch chiropractic adjustment porn videos for free, here on. Those heads are nothing but boat anchors i had a set of those and traded them in on a set of 993s. Guide to chevy smallblock production heads chevy diy. The heads have a tendency to crack, and are factory with 1. Wish id had time to dyno my motor since i swapped heads, so i had some figures to back this up. Cracking causes the head to lose pressure, resulting in lost power for your vehicle. I have already applied the penetrant and let it set up. Ill show you a whole pile of junk, cracked cast iron heads out back of my shop.

Youd be better of doing some port work and a good valve job on your 305 heads instead of bolting on those 882 s. Check the web sit i posted above and check the flow numbers. The constant change in temperature causes cracks to form in aluminum heads. With the current aftermarket now producing better offerings, personally, we would leave these on the shelf when it comes time for your next engine build. The heavyduty oil pump shaft costs a few extra bucks, but was cheap insurance against oil starvation. A guide to vortec vs oe small block chevy heads onedirt.

They are not cracked, but im concerned about such an ominous warning. These heads were found on earlylate 70s 350 and 400 engines. When i install 882s i use the intake manifold restrictors on both heads, this helps reduce the cracking of the 882s. No other sex tube is more popular and features more big booty crackhead scenes than pornhub. In fact, it can cause you headaches in nearly every facet of an engines operation. From what i remember, the 882 was a stout head, it wasnt of the lightweight, thincasting design. I have just washed the penetrant off and now it is time to apply the developer.