Bbc 088 Heads Private Content Updates #731

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I just bought a set of 088 heads complete for 450 bucks shipped to. 496 bbc, 088 cylinder heads rectangle port, extreme energy 248/254 cam shaft , compression ratio 10.2 to 1, best pull 605hp/ 585'tq Just curious, what was the best cast iron factory gm bbc cylinder head and what is the most that you seen or heard of them flow in fully ported form

781 BBC HEADS COMPLETE | Team Chevelle

I assume a rectangle port of some offering I am well familiar with. I've read that the 088 rectangle port could go 390 cfm on the intake

Steve jackson seemed to run very well with the factory iron bbc heads.

Big block chevy engine parts casting numbers and identification big block chevy cylinder heads open vs These heads have the largest, as cast, gm production iron head ports In the neighborhood of 325 intake runners They need to have the rocker stud bosses tapped to 7/16 for regular bbc guide plates

The stock 2.19 intake valves tend to be very heavy Chamber and will direct bolt to mark v and. Get the full book to learn more! Find a variety of aluminum cylinder heads for big block chevy engines from promaxx performance

Compare prices, features and specifications of different models and series.

I bought everything except the block Going through the heads which are gm iron heads 088 castings I found numerous broken valve springs destroyed shims but the most troubling is serverly pitted This ensures that the ports, valve seats, and combustion chambers are all perfectly aligned, which is crucial for optimal engine performance.

Chevrolet big block heads chevrolet big block heads were offered in many different variations within their 51 years of production Gm production of the chevy big block engine began in 1958 with the mark i w series and ended with the gen vii in 2009 However, in the aftermarket production of heads, blocks or complete engines continue till this day Over the years depending on the application.

One set 1998 big block chevy 502 rectangle port heads dated a108 and a208 open chamber one head had a small crack in between 2 cylinders it was welded by a good professional and ground down it just.

With gm 088 rectangle port heads,.800 lift with 276 duration @.050 118cc came off a 496 race engine have some light surface rust from sitting my shelf. I don't have the flow numbers in front of me, those who read the artical about 088's and afr heads, there was flow numbers for both heads I have a set of factory stock 088's heads on my car now, what would be the best cam to run with these heads to get everything they have to offer based on. The trickflow head flows pretty much exactly what i can get a 088 to, but it does it with a 50cc smaller port and thats a huge thing

Those heads also have raised exhaust ports that can support nitrous use way beyond what a stock casting can If you have to use the stock castings because of budget constraints its. I recently picked up some bbc parts that were on an hp500 motor I found numerous broken valve springs destroyed shims but the most troubling is serverly pitted exhaust seats and valves

I was told these parts came from a running hp 500 with 200hrs or so

Both heads at #7 and #8 cylinders have. Just want to see from you all what kinda combo your running with '088 heads any 1/4 mile times be great and hp numbers too. I've personally seen 088 heads he did with a 2.25 intake valve and a 45 degree seat go 388 Larry meaux is another that's a genius with a stock bbc casting

My personal view is that larrys exhaust ports are quite as good as some others i've seen. 088 bbc head flow data By mag2555 » mon nov 20, 2017 11:50 am if i recall right without digging up my flow test sheets, the best stock intake on a 088 casting hit 325 cfm@.700 lift, the exh low topped out at 200 cfm@.850 lift How much power are you needing to yank out of them?

The cam is a solid roller with a 685 lift 252/263

I have a 1000 bucks to spend on a set of heads, that is the budget A guy has a fresh set of 088 for 600.00 but i have been told that they won't seal up on a mark 4 block Something about the head gaskets not lining up Heads are already set up for old school mk iv valve train stuff now the questions i am led to believe that the 088 head will work on the mk iv block

Is there a special gasket required I have a chance to buy a set of rect Port 088 heads of a marine engine for real cheap and wanted to know if they would fit my 70's 454 bbc With the bbc, what's considered average that most head porters can expect to see out them with larger valves and full port work

I found 2 threads here that the individuals who were using the iron rectangle heads, were seeing 360 cfm @.800

Is 360 cfm moderate mainstream for the rectangle port bbc or on the lower end of the totem pole? Are these heads any good They can be had for a reasonable price Can somebody explain if these heads will work well as opposed to some of the other well known casting numbers or the dart and world (fairly low end price) from summit/jegs