bbc peanut heads and porting - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chris mc bride · 05-20-2017, 07:48 PM

So stuck a valve on panel and long way from having a real set ready to go on. A smart guy would just repair these lousy peanut heads. Me I have to at least pocket port them. Looks as if opening the ports to a mid ground between factory and real oval port. Hard to see how I could open them enough to get as much flow a stock 049 or =. Well w/o hitting water.

Wondering if anyone here has ported or had a set ported and results,power increase wise.

BossHogg69 · 05-20-2017, 10:00 PM

http://www.chevelles.com/forums/13-p...drag-test.html

search for 'peanut ports' or '236' heads in the performance section over at Team Chevelle... Lots of info there.

chris mc bride · 05-22-2017, 01:46 PM

While I'm sure some could get lot more out of these things. using my homemade flow bench(old copy popular hot rodding) ,die grinder,cpl burs and about 8 hours. I ddi mange to pickup flow about 50 cfm intake and 40 or so exhaust. Now changing valves probably helped more than anything. Don't ask for numbers because have had too many arguments opver them.This is homemade deal and really only good for before and after comparison. Numbers will be way ;low compared to super flow due to less test level air flow.

Now if anyone has a superflow sitting around in the way,give me a shout I'll help you out and move it for you.LMAO

IMO its worth hundred bucks for valve job(had valves laying here for 15 years or so) and a Saturday(all day and evening) of work.

05-20-2017, 07:48 PM	#1
chris mc bride Registered User Join Date: Aug 2008 Location: greensboro nc Posts: 673	bbc peanut heads and porting So stuck a valve on panel and long way from having a real set ready to go on. A smart guy would just repair these lousy peanut heads. Me I have to at least pocket port them. Looks as if opening the ports to a mid ground between factory and real oval port. Hard to see how I could open them enough to get as much flow a stock 049 or =. Well w/o hitting water. Wondering if anyone here has ported or had a set ported and results,power increase wise. __________________ Only the stupid know too much to learn something new.

05-20-2017, 10:00 PM	#2
BossHogg69 motor exploder Join Date: Mar 2009 Location: Pittsburgh, PA Posts: 2,346	Re: bbc peanut heads and porting http://www.chevelles.com/forums/13-p...drag-test.html search for 'peanut ports' or '236' heads in the performance section over at Team Chevelle... Lots of info there. __________________ Adam 1969 Chevy CST/10 stepside, DART Big M/TREMEC Magnum Extreme/3.73's w/Detroit Truetrac 1965 Chevy Bel Air Wagon (daily driver), 327/TH350,10 bolt w/3.08's 1961 Chevy Bel Air Sport Coupe, ZZ454/M21/9" rear w/3.50's & Detroit Truetrac 2005 GMC 1500 ccsb 2wd, 6.0L/4L65e/3.73 G80 2006 GMC 2500HD ccsb 4x4, DMax LBZ/Allison 6spd/4.56's w/Detroit TrueTrac Use the SEARCH function on this forum - it is your friend!!

05-22-2017, 01:46 PM	#3
chris mc bride Registered User Join Date: Aug 2008 Location: greensboro nc Posts: 673	Re: bbc peanut heads and porting While I'm sure some could get lot more out of these things. using my homemade flow bench(old copy popular hot rodding) ,die grinder,cpl burs and about 8 hours. I ddi mange to pickup flow about 50 cfm intake and 40 or so exhaust. Now changing valves probably helped more than anything. Don't ask for numbers because have had too many arguments opver them.This is homemade deal and really only good for before and after comparison. Numbers will be way ;low compared to super flow due to less test level air flow. Now if anyone has a superflow sitting around in the way,give me a shout I'll help you out and move it for you.LMAO IMO its worth hundred bucks for valve job(had valves laying here for 15 years or so) and a Saturday(all day and evening) of work. __________________ Only the stupid know too much to learn something new.



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