building a 306

93snake93 · 07-16-2005, 08:12 PM

I would like to know who else has built a 306. What kind of HP are you making? Also what parts/ kits were used and other things aswell. I can't make up my mind what to do with my motor.

Craig K. · 07-16-2005, 08:52 PM

I have a 306 NA carb'ed engine in my '85.
The class that I run in limits my engine mods, but heres whats in it.
stock block 0.030" over, ligned honed crank journels, bock decked
'66 289 HO heads 1.94/1.60 chevy valves ported and polished
app. 10.5:1, pistons are flat top and have a zero deck height, file fit rings.
stock rods, edges are ground flat, shot penned, ARP bolts
stock crank - bobbed wieghted balanced
custom cam (0.500" lift, 228 duration at .050")
Comp cam magnum roller rockers (1.6)
short block is very well balanced, everything is within 1/2 gram.
Edelbrock RPM, Holley 650 double pumpre (standard jets)
15/8" long tubes
MSD ignition

On a fat tune I got 292 HP and 312 torque, with a good tune it should break 300 HP

Again this is a pretty mild combo.

Wicked · 07-16-2005, 09:20 PM

If you are building the shortblock yourself, I used a engine rebuild kit from Summit with Speed Pro forged pistons. Very affordable at just over $400.

I had ported stock intake and heads, so I wasn't making the power that some others on this board are.

My old shortblock is now in a car that uses TFS Twisted Wedge heads, GT40 Intake, E303 cam, and made 300rwhp/327rwtq. It now makes 435/445 with 9psi of Procharger.

94five0 · 07-16-2005, 09:32 PM

werd a 306 is conservative as far as the strokers go.. but it'll defintly hold its own.. lee's runnin a 306 on his cobra.. made like 502 on nitrous..i forgot what it made on the procharger.... but like any combo.. its all the gear thats supporting it that determines the power and longevity of the setup- heads, intake, cam.. but more importantly.. forged rotating assembly: crank, pistons.. tough gear to take all that extra abuse..

give ya some for instances; Blake at Walker Dyno has a built 306 in his '85 racecar.. with a bomb-proof bottom end from Bennet Racing (Svo block) an his t-76 turbo.. made somthin like 780/902 at the wheels..friekin scary

..ran like low 11's las year, goin sideways down the track..

..talk to brad when he get his turboed 331 tho..

Wicked · 07-16-2005, 09:41 PM

Quote:

Originally Posted by 94five0

werd a 306 is conservative as far as the strokers go..

Jase, a 306 is only a .030 overbore, not a stroker. You won't gain any power by going to a 306. The same heads, cam, intake will make the same power on a fresh standard bore 302.

Disney Lincoln · 07-16-2005, 09:46 PM

I am running a stock rebuild 306 in my Lincoln. I haev TFS TW heads (ported TEA), TEA ported Cobra lower, stock Cobra upper, 284/288 blower cam (it was fre and laying around), 24# inj. 75mm MAF, stock TB, long tubes.

It made 314rwhp 341rwtq on motor. made 449hp, 560tq on small nitrous shot. Also got 25.2 mpg on a trip to Miami and back. ran 12.6@108 on motor.

as for "How much power?" Brent on Turbomustangs put down 1100hp TO THE WHEELS with a 306 and a single turbo through a carb.

1Quik85GT · 07-16-2005, 09:58 PM

my ole 306 from 2yrs ago...was dynoed at 330RHWP, and it ran 11.80s at 115mph... N/A.

QWKSNKE · 07-17-2005, 07:45 AM

mine is a 306

Parts are..
Ross forged pistons
Speed Pro file fit rings
Eagle H-beam rods
AFR 165 heads
AFM B-31 cam
Procharger D-1 w/ 3core intercooler

Made 515 / 532 to the wheels

When my car had a stock bottom end, AFR 165 heads, and FRPP 'B' cam it made 295/312 at the wheels and on a 150 shot it made 413/540

Shankin · 07-17-2005, 08:46 AM

stock bottom 302,brodix st 5.0r,systemax,f cam,long tubes,70 mm t body,80mm pro m mass air,made 331 hp 331 tq,installed novi and made 601hp 551tq on 12psi

07-16-2005, 08:12 PM	#1
93snake93 Junior Member Join Date: Jun 2005 Posts: 1	building a 306 I would like to know who else has built a 306. What kind of HP are you making? Also what parts/ kits were used and other things aswell. I can't make up my mind what to do with my motor.

07-16-2005, 08:52 PM	#2
Craig K. Nothing new here Join Date: Dec 2004 Location: Senoia, GA Posts: 2,990	Re: building a 306 I have a 306 NA carb'ed engine in my '85. The class that I run in limits my engine mods, but heres whats in it. stock block 0.030" over, ligned honed crank journels, bock decked '66 289 HO heads 1.94/1.60 chevy valves ported and polished app. 10.5:1, pistons are flat top and have a zero deck height, file fit rings. stock rods, edges are ground flat, shot penned, ARP bolts stock crank - bobbed wieghted balanced custom cam (0.500" lift, 228 duration at .050") Comp cam magnum roller rockers (1.6) short block is very well balanced, everything is within 1/2 gram. Edelbrock RPM, Holley 650 double pumpre (standard jets) 15/8" long tubes MSD ignition On a fat tune I got 292 HP and 312 torque, with a good tune it should break 300 HP Again this is a pretty mild combo. __________________ 1974 Triumph TR6 1985 Monte Carlo SS 1986 Mustang GT 2011 KIA Optima GTS

07-16-2005, 09:20 PM	#3
Wicked Friends Join Date: Dec 2004 Location: Pell City, AL Posts: 1,371	Re: building a 306 If you are building the shortblock yourself, I used a engine rebuild kit from Summit with Speed Pro forged pistons. Very affordable at just over $400. I had ported stock intake and heads, so I wasn't making the power that some others on this board are. My old shortblock is now in a car that uses TFS Twisted Wedge heads, GT40 Intake, E303 cam, and made 300rwhp/327rwtq. It now makes 435/445 with 9psi of Procharger. __________________ 2001 Cobra 'Vert Procharged and Intercooled 455rwhp/441rwtq Work Car: 2005 Honda Odyssey 400 whp Turbo V6, 6-speed, full cage, H&R Suspension, Brembo Brakes

07-16-2005, 09:32 PM	#4
94five0 S-6 Mafia Join Date: Dec 2004 Location: above a bowling alley and below another bowling alley. Posts: 1,670	Re: building a 306 werd a 306 is conservative as far as the strokers go.. but it'll defintly hold its own.. lee's runnin a 306 on his cobra.. made like 502 on nitrous..i forgot what it made on the procharger.... but like any combo.. its all the gear thats supporting it that determines the power and longevity of the setup- heads, intake, cam.. but more importantly.. forged rotating assembly: crank, pistons.. tough gear to take all that extra abuse.. give ya some for instances; Blake at Walker Dyno has a built 306 in his '85 racecar.. with a bomb-proof bottom end from Bennet Racing (Svo block) an his t-76 turbo.. made somthin like 780/902 at the wheels..friekin scary ..ran like low 11's las year, goin sideways down the track.. ..talk to brad when he get his turboed 331 tho.. __________________ Jason ATF should be a store...not a government agency.

07-16-2005, 09:46 PM	#6
Disney Lincoln Senior Member Join Date: May 2005 Posts: 290	Re: building a 306 I am running a stock rebuild 306 in my Lincoln. I haev TFS TW heads (ported TEA), TEA ported Cobra lower, stock Cobra upper, 284/288 blower cam (it was fre and laying around), 24# inj. 75mm MAF, stock TB, long tubes. It made 314rwhp 341rwtq on motor. made 449hp, 560tq on small nitrous shot. Also got 25.2 mpg on a trip to Miami and back. ran 12.6@108 on motor. as for "How much power?" Brent on Turbomustangs put down 1100hp TO THE WHEELS with a 306 and a single turbo through a carb.

07-16-2005, 09:58 PM	#7
1Quik85GT Senior Member Join Date: Apr 2005 Posts: 895	Re: building a 306 my ole 306 from 2yrs ago...was dynoed at 330RHWP, and it ran 11.80s at 115mph... N/A.

07-17-2005, 07:45 AM	#8
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	Re: building a 306 mine is a 306 Parts are.. Ross forged pistons Speed Pro file fit rings Eagle H-beam rods AFR 165 heads AFM B-31 cam Procharger D-1 w/ 3core intercooler Made 515 / 532 to the wheels When my car had a stock bottom end, AFR 165 heads, and FRPP 'B' cam it made 295/312 at the wheels and on a 150 shot it made 413/540 __________________ 2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy

07-17-2005, 08:46 AM	#9
Shankin Senior Member Join Date: Jul 2005 Posts: 339	Re: building a 306 stock bottom 302,brodix st 5.0r,systemax,f cam,long tubes,70 mm t body,80mm pro m mass air,made 331 hp 331 tq,installed novi and made 601hp 551tq on 12psi