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Best heads for 306 with JE pistons

  • Thread starter Thread starter aleborjas
  • Start date Start date Oct 30, 2005
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aleborjas

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Sep 11, 2005
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#1
  • Oct 30, 2005
  • #1
wich are the best heads for a 306 with XE274HR cam, JE pistons flat top big valve releafs, typhoon intake (ported), maybe 30 pounders, 3.73 gears, T5 trans, 1 5/8 LT's. goin to the track al weekends with M/T drag radials 26''...
I WHANT POWER I WANT THE BEST OF THESE ENGINE!
 
I

IntenseBlue

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Jul 10, 2005
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#2
  • Oct 30, 2005
  • #2
1) Want doesn't have an H in it
2) I'd go with AFR 185s
 

aleborjas

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#3
  • Oct 30, 2005
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IntenseBlue said:
1) Want doesn't have an H in it
2) I'd go with AFR 185s
Click to expand...
sorry men i live in venezuela and im trying to do my best i lived in miami 7 years ago so im trying to remember my english and only lived there for 4 years and thanks for helping me on my lenguage
 
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IntenseBlue

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I know. I was just pickin' on ya.
 

JUCD 5.0

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Belleville, Illinois (ST.Louis area)
Oct 30, 2005
#5
  • Oct 30, 2005
  • #5
i run the edelbrock Victor Jr's with my 306 and i like them alot.
 
8

87'GTstang

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Feb 16, 2004
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#6
  • Oct 30, 2005
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AFR 185s
Those or something similar with about a 2.02" intake valve.
 

N8Miller

I need NOS....make it 2 of the big ones
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Oct 30, 2005
#7
  • Oct 30, 2005
  • #7
see, you cant just say "what is the best head". you need to tell us what you plan on doing with the car and what type of usage your doing with it? street/strip? street racing or daily driver?

i would do afr 165 or trickflows.
 
W

WhiteHeat306

Member
Nov 28, 2004
283
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Philadelphia Suburbs
Oct 30, 2005
#8
  • Oct 30, 2005
  • #8
N8Miller said:
i would do afr 165 or trickflows.
Click to expand...
Yeah I think 185s would be overkill for that car. I have ported Edelbrock heads on my 306 but I'd rather have the Trick Flow or AFRs on there.
 

stangnutlx

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Oct 30, 2005
#9
  • Oct 30, 2005
  • #9
i have twisted wedge heads on mine 11:1 comp makes big power!!
 

CrazyCobra

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Oct 30, 2005
#10
  • Oct 30, 2005
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WhiteHeat306 said:
Yeah I think 185s would be overkill for that car...
Click to expand...
The AFR185s will work great on this combo. I run the XE274HR with 185s on a 306 with flat tops. I recently changed from e cam and edelbrock 2.02 heads and the car picked up 2mph even though I also changed to a viper spec T56 which is approx 70 pounds heavier and robs 4-5% more power than the T5.
The only problem I have had is the car is flat on its face untill 3200rpm, this is very apparent because of the 2.66 first gear of the tranny with 3.73 gears, a set of 4.30s should help out with it.
Good luck.
 

bynummustang

Seen my other Jackstand?
Jul 24, 2005
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Oct 30, 2005
#11
  • Oct 30, 2005
  • #11
aleborjas said:
sorry men i live in venezuela and im trying to do my best i lived in miami 7 years ago so im trying to remember my english and only lived there for 4 years and thanks for helping me on my lenguage
Click to expand...

Venezuela? My mom is from there, and her family still lives down there. Where in Ven. do you live? Caracas? Maracaibo? Gran Savana? Los Andes?

I love it down there, mi hermano y yo fuimos a Canaima para Salto Sapo y Salto Angel en Augosto.
 

aleborjas

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#12
  • Oct 31, 2005
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bynummustang said:
Venezuela? My mom is from there, and her family still lives down there. Where in Ven. do you live? Caracas? Maracaibo? Gran Savana? Los Andes?

I love it down there, mi hermano y yo fuimos a Canaima para Salto Sapo y Salto Angel en Augosto.
Click to expand...
maracaibo "soy maracucho"
 

aleborjas

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#13
  • Oct 31, 2005
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how many HP's can i make with my combo with the 185's? and like some ET's?
 
W

WhiteHeat306

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Philadelphia Suburbs
Oct 31, 2005
#14
  • Oct 31, 2005
  • #14
CrazyCobra said:
The AFR185s will work great on this combo. I run the XE274HR with 185s on a 306 with flat tops. I recently changed from e cam and edelbrock 2.02 heads and the car picked up 2mph even though I also changed to a viper spec T56 which is approx 70 pounds heavier and robs 4-5% more power than the T5.
Click to expand...
I stand corrected! Sounds like a sweet ride that you've got man
 

aleborjas

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#15
  • Nov 1, 2005
  • #15
like how much hp's can i get with that?
and about some track time(ET's)???
 

Modular2v

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Jun 30, 2002
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oklahoma
Nov 1, 2005
#16
  • Nov 1, 2005
  • #16
i think you are looking at around 325- 350 rear wheel horse power.... and 12.50- 12.00 times depending on hooking up
 

stangnutlx

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May 24, 2005
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Nov 1, 2005
#17
  • Nov 1, 2005
  • #17
hows 375rwhp sound?
 

2000xp8

SN Certified Technician
Aug 8, 2003
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Nov 1, 2005
#18
  • Nov 1, 2005
  • #18
To get 375 out of a street 306 you are going to need the absolute perfect combo. It's highly unlikely you'll be anywhere near it on your first try at a setup.

i'm with Mod2v likely between 325-350, but with box stock heads i'd say more towards the 325 mark.

CrazyCobra, is your Profile up to date?
 
I

IntenseBlue

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#19
  • Nov 1, 2005
  • #19
I'm pretty sure it'll go low,low 12s and very much possible it could go 11s. 325whp, maybe a little bit more, but not much.
 

aleborjas

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#20
  • Nov 1, 2005
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i whant to get low 12's i have 3.73 gears i'm a daily driver its ok? right now i have 19's inyectors but i have some 30's on my closet can i put it on with the heads? can i put 26x10 slicks for good lauches? any other recomendations for my car like timing base and max (cobra computer), plugs gap(stock ignition), RPM shift point, etc......
P.S i put the cam where it says with the degree disc from comp cams!
 
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