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Author Topic:   PONTIAC ENGINES IN STREET STOCK
VIPER000
Member
posted December 11, 2000 12:37 PM
I HAVE ACCESS TO SEVERAL PONTIAC ENGINES FOR RELATIVLY CHEAP AND AM CONSIDERING CHANGING TO THEM FROM CHEVY. HAS ANYONE OUT THEIR USED THESE AND WHAT KIND OF SUCCESS HAVE THEY HAD. IN PARTICULAR 301, 400BB, 455
I AM PLANNING ON USING THEM IN A 3400 LB STREET STOCK.


junkyard
Member
posted December 11, 2000 06:34 PM
I won a lot of street stock features with pontiac power.They don't like to turn a lot of RPM's but put out a lot of torque. Torque is what will get that 3400 lb car off the corner. Don't mess with the 301 except as a boat anchor.


VIPER000
Member
posted December 12, 2000 06:40 AM
DOES THE EXTRA WEIGHT OF THE BIG BLOCK NOT HURT OVER A SBC


junkyard
Member
posted December 12, 2000 05:15 PM
Yes a pontiac engine weighs more than a small block chev but will go faster for less money. The 400's and 455's need no beefing up of the bottom end to race them. But remember they don't like RPM's or it will go boom.


KeithAck
Member
posted December 12, 2000 10:01 PM
I ran a Pontiac 350 in a street/hobby stock the last year. I won 2 features and was consistently in to top 5. Junkyard is right they make a lot of torque. Had to downshift on the restarts but once it got rolling it was fast. Never ran above 5000 rpm.


VIPER000
Member
posted December 26, 2000 02:41 PM
DOES ANYONE KNOW OF A GOOD SOURCE OF INFO ON PONTIACS IE WHAT IS IN WHAT YEARS BEARING SIZES CASTING NUMBERS.


junkyard
Member
posted December 26, 2000 04:30 PM
I will have too look around the basement. I had all that stuff but it has been a long time in storage. If I remember right most of the cranks and rod are the same. I think if you stay under 5000 RPM you will be o.k. The casting munbers that matter are the heads. That is how you get compression with Pontiac.


widebody
Member
posted January 10, 2001 10:59 AM
Some general info:
Pontiac never made a BB the 428 and 455 had larger crank journals. The 301 doesnt count for anything other than for using valve covers or timing covers. The boat anchor idea is the best for these.

I have been doing some research on pontiac in circle track and have found some limited amount of info. Pontiacs dont like high RPM's(stock). This is fact The debate is to what limit you can take a stock lower end(354 or 400). I have heard and seen many different things. For cerntity, a local drag racer ran stock rods on a balanced rotating asym. to 7000-7200 for 8 years with no problems. Parts you need to buy. Rod bolts, good HV oil pump(not a SD HP pump).

What info is everyone looking for?
I have a ton of links for everthing from head numbers, intake numbers, to Jim Hand articles on cam selection. Ill start with these: http://www.pontiacs.org/index.htm //numbers http://www.cyberramp.net/~firebyrd/jimhand.htm //Jim Hand cam article
If you want more holler:


4s racing
Member
posted January 23, 2001 08:12 AM
hey widebody do you or anyone else have any info. on a 400c.i. ford .i need some info.Please don't tell me it's a boat ancor.i just bought a 72 ford pure stock.it didn't run all that bad in 2000 season. thanks


widebody
Member
posted January 23, 2001 08:52 AM
Sorry I cant help you with Fords.
I could go on all day about pontiacs. Im sure there are some die hard ford guys on here somewhere.
Try posting a new topic.
Good Luck


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