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#1
12-20-2012, 05:04 PM
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Edelbrock...
If you are staying with the 400 combo the 72cc is the head for you to remain pump gas friendly. If you are going to stroke it the 87cc head is the one that is still pump gas friendly. They make the round port versions and the D-port version. The round ports will not work with the headers you currently have as they won't bolt up. The D-ports will work fine with the headers you have as far as bolting up to them. If your iron heads are a true 260 cfm at .500 lift I would stick with them but if you are guessing they are 260 without a flowbench sheet then you might be surprised what they flow... An iron head that flows an honest 260 is a pretty decent head...
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1969 GTO, 5.77 @ 121 1/8th mile 3450 lbs...535 with Junk dinosaur Eheads Faster on nitrous… |
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#2
12-20-2012, 05:42 PM
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Quote:
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#3
12-20-2012, 05:46 PM
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In your place I would consider SD performance's KRE 290/295 CNC d-port package.
http://www.sdperformance.com/viewPro...productID=1691 A big chunk of change for some? sure, but well worth it over the long haul. All the head you will need with lots of room to grow! Last edited by pastry_chef; 12-20-2012 at 05:51 PM. |
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#4
12-20-2012, 06:36 PM
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yes, Scott, you said it right. After work is done they may flow 260 cfm, i am reading stock Elderbrocks flow that out of the box. So i understand here , the 72 cc,s is what you all recomend?? With shipping ill have over 1,000.00$ in them
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#5
12-20-2012, 11:17 PM
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You missed 69Goat1's subtle hint. It's spelled Edelbrock. You will want to get that right before contacting any vendors about product. They will probably take your money no matter how you say the word, but your chances of being taken seriously are much better if you know the product.
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Brian Rock '65 GTO - Pump gas 496" IA2 w/ High Ports, 200-4R trans, 3.73 gears, 275 Hoosier radials, and 3925 lbs. 9.88 @ 134 N/A on Cali 91 octane. http://www.youtube.com/watch?v=NJEIY5OJ68g 
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#6
12-20-2012, 11:27 PM
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Geez, always a comedian, no big deal i thought, but??????
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#7
12-23-2012, 08:32 AM
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Quote:
I'd be wary of a local head shop porting your head to "260" cfm. Standard street port jobs are closer to 240cfm. If I "had" to have 260+ out of a set of iron heads I'd only trust one of the pontiac shops (Butler, KRE, Spotts in Hatfield, PA, Dude, etc.). As 69Goat said - 260 cfm from an iron port is a significant port job. My recc - I'd opt for the KRE dports either let them do it or SD. Both have CNC machines and KRE got the 310cfm port job to me in less than a month. If money is a bit tight, then just by KRE dports stock from them - 1850 for 65cc heads and 1900 for 74cc heads. They are probably 2-300 bucks cheaper than the ehead dports. You don't need to change headers. Definately , when you swap heads - check your cams degree. ALL cams should be degree'd. |
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#8
12-23-2012, 01:57 PM
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Totally agree with all you guys, I just want to know in my mind that my heads are ok, I may want to go with the 1.65 rockers to. Like i stated, these heads never looked at by a professional head porting guy. Id be happy with 240 cfm,s. Thanks for all the great answers.
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