Are Chevy 882 heads good?

Are Chevy 882 Heads Good?
Chevy 882 heads were designed by Chevy to be used in 350 ci and 400 ci engines. They were an improvement over the earlier iterations of this engine, which had issues with cracking due to running hot. The 882 heads are considered to sit somewhat in the middle in terms of performance. They are not the best heads, but they are also not the worst. They were initially released in the late 1970s and were considered pretty good for their time. However, they are not highly recommended, and there are mixed opinions about their performance.
Some sources suggest that the 882 heads do flow better than some in the smog era and can help with higher compression, but they are not considered worth spending money on today.
Overall, the consensus seems to be that while the 882 heads were decent for their time, they are not highly recommended today and are considered to be moderate in terms of performance.

Does upgrading heads increase horsepower?

Improved throttle response, ‘fatter’ power and torque curves, and peak horsepower can all be generated through selecting the right cylinder heads for the engine combination. However, in order to do that, it is important to focus on the overall characteristics and not on just one specific figure, such as peak flow.

Why are 706 heads so good?

The Chevy 706 LS Heads are semi-permanent mold (SPM) made and superior to the most common 862 heads, which are sand cast. The SPM method is a more consistent process, but porting 862 heads nullifies the difference between them. But again, porting costs cash, so 706 heads is the best choice to cast in stock form.

What is different about Vortec heads?

From the outside the most noticeable difference is on the intake manifold surface. The intake manifold on Vortec heads are held in place by eight 5/16-18 cap screws rather than the dozen 3/8-16 fasteners used by the earlier heads.

What is the CC on a Chevy 882 heads?

Race Car Engine Cylinder Head – Cylinder Head Flowathon – Feature Tech

GM 882 IRON
Port:	151 cc
Chamber:	76 cc
Valves Sizes:	1.94/1.50
I Flow @ 0.400:	203 cfm

Apr 1, 1999

What are Chevy double hump heads?

These heads got their nickname because of the raised identification shape on the each end. It’s two half-ovals connected by a straight bar-most easily described as “two humps.” Some of these are also nicknamed “Fuelie” heads because a version appeared on fuel-injected 327-powered Chevy Corvettes.

Are 882 heads good heads?

they are prone to overheating and cracking alot. round track racers use them because they are cheap and can throw them away and get another set for $10. I have thrown away alot of 882 heads from 350s and 400s over the years because they are junkers. The 186s will outperform the 882s all day long.

What is so special about Vortec heads?

The most important detail is that the Vortec uses an eight-bolt intake-manifold pattern that is different from the standard 12-bolt pattern. The Vortec requires a specific Vortec intake manifold available from both GM Performance Parts and Edelbrock.

Can you run 305 heads on a 350?

Yes, it depends on the heads and chamber size but mainly it will increase low end power. I did it, car had descent low end grunt and nothing after like 5 grand.

What is the compression ratio of 882 heads?

It’s not the flow that makes them boat anchors, it’s the huge 76cc combustion chambers – for performance you want a higher compression ratio (882’s are like 8:1, where most “performace” heads are 9:1 or 10:1).

Where do 882 heads crack?

if it ran fine then run it, 882 heads usually crack when over heated in the exhaust seat area as Rick said, or or in-between intake and exhaust seats, and when they do there is evidence in the white exhaust from coolant in the exhaust.