|
04-04-2012, 07:07 PM | #1 |
Member
Join Date: Nov 2006
Posts: 133
Likes: 36
Liked 8 Times in 6 Posts
|
BBC Iron heads
I know this is not a stocker project but the question is for the BBC stock guys(or anybody who might know). I'm trying to find out the best (IYO)flowing factory iron oval port head with a gasket match-clean up the pockets and 2.19&1.88 valves, cam lift in the ..500 to .600 range,nothing special (open or closed chamber). It's for a 6000 rpm 454 street engine in a 3500lb car. Thanks Mario.
Last edited by STK1217; 04-04-2012 at 08:58 PM. |
04-04-2012, 08:58 PM | #2 |
VIP Member
Join Date: Nov 2007
Location: New Jersey
Posts: 1,778
Likes: 70
Liked 400 Times in 191 Posts
|
Re: BBC Iron heads
215 semi closed chamber.
I ran these heads on a pump gas 468 from '95 to 2007 and each time the engine was freshened, the heads were massaged a little more. Ultimately going from a 2.19/1.88 valves to a 2.25 intake valve. Best numbers in my 3880 lb. footbrake launched Chevelle were 1.28 60 foot and 10.07 @ 131. Last edited by 1320racer; 04-04-2012 at 09:05 PM. |
04-05-2012, 02:39 PM | #3 |
Member
Join Date: Nov 2006
Posts: 133
Likes: 36
Liked 8 Times in 6 Posts
|
Re: BBC Iron heads
Nice ride 1320 and thanks for the reply.
|
04-05-2012, 10:08 PM | #4 | |
Senior Member
Join Date: Feb 2012
Location: Colorado Springs Colorado/Thousand Oaks Ca
Posts: 606
Likes: 68
Liked 238 Times in 97 Posts
|
Re: BBC Iron heads
Quote:
|
|
04-06-2012, 12:07 AM | #5 |
Junior Member
Join Date: Jul 2007
Posts: 23
Likes: 0
Liked 0 Times in 0 Posts
|
Re: BBC Iron heads
049 small plug head is the best. late 69 ones
Larry |
04-07-2012, 06:02 PM | #6 |
Member
Join Date: Nov 2006
Posts: 133
Likes: 36
Liked 8 Times in 6 Posts
|
Re: BBC Iron heads
Thanks HP and Larry- Most people agree with you- 049 and 781's. Thanks Mario.
|
04-07-2012, 10:37 PM | #7 |
VIP Member
Join Date: Nov 2007
Location: New Jersey
Posts: 1,778
Likes: 70
Liked 400 Times in 191 Posts
|
Re: BBC Iron heads
I'll take a small chamber requiring little to no dome to achieve a specific compression ratio over a large chamber requiring a big dome to achieve the same compression every time.
FYI, through the end of the 2007 season when I retired my 468, there wasn't one 468 with 049/781 heads installed in a similar weight Chevelle, competing in Division 1 brackets that could run on par with my ride no mind quicker. Matter of fact, my Chevelle ran quicker than EVERY n/a 454, 496, 502, GM's 720HP 572 and most 540's regardless of which head they ran, in a similar Chevelle here in Division 1 brackets, just saying. BTW, the devil is in the details and the performance that HP Hunter speaks of also comes by way of a $6,000 Coan XLT 350 trans backing up that 496. Just saying. Last edited by 1320racer; 04-07-2012 at 10:40 PM. |
04-07-2012, 11:37 PM | #8 | |
Senior Member
Join Date: Feb 2012
Location: Colorado Springs Colorado/Thousand Oaks Ca
Posts: 606
Likes: 68
Liked 238 Times in 97 Posts
|
Re: BBC Iron heads
Quote:
|
|
04-07-2012, 11:43 PM | #9 | |
Senior Member
Join Date: Feb 2012
Location: Colorado Springs Colorado/Thousand Oaks Ca
Posts: 606
Likes: 68
Liked 238 Times in 97 Posts
|
Re: BBC Iron heads
Quote:
|
|
04-08-2012, 07:17 AM | #10 |
VIP Member
Join Date: Nov 2007
Location: New Jersey
Posts: 1,778
Likes: 70
Liked 400 Times in 191 Posts
|
Re: BBC Iron heads
I didn't forget anything, you forgot to be truthfull AGAIN in another post whose sole intent is to solicit business.
FYI, that trans sells for $4,000 - $5,000 USED... http://classracer.com/classforum/sho...light=Coan+XLT http://classracer.com/classforum/sho...light=Coan+XLT http://classracer.com/classforum/sho...light=Coan+XLT That said, don't know, don't care who your customer is, "what is full weight" and "I think" is meaningless speculation, besides it appears no one in your area has ever seen your car run, no mind back up your claims... Per Mark Guthrie, a guy that first met HP Hunter aka Mark Jones in 2007, knows him well, and "helped him in his shops for months", "Mark has talked about his "3600 lb. Chevelle" dozens of times. I have never seen him run any of his cars, ever and I am just saying none of the locals have seen it." Meanwhile, Bob's Chevelle runs good, it should, it's nearly 300 lbs. lighter than my '68 and has nearly 40 more cubes and I've been advising him for over a decade. Again, nice to see that after 5 years, some have caught up and some have surpassed my former Chevelle's performance as is the case with the car HP Hunter speaks of, even if it took 30+ more cubes, a light weight, low drag transmission in a car that weighs nearly 300 lbs. less and last but not least a -1600' DA to do it! Just saying. BTW, the compression ratio of this 496 is at least 10.8 not the 10.7 you stated. Just keeping it real. Last edited by 1320racer; 04-08-2012 at 08:16 AM. |
|
|