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Author Topic:   Need General Engine advise
FastEddy
Member
posted August 26, 2003 10:29 PM
Here are the rules for engines at the track I plan on racing at. What are your suggestions for an engine? Street Stock class. Thanks in advance for your pointers!

7. ENGINE:
Any automotive engine originally produced by an American automobile manufacturer for passenger
car use. Not to exceed 8 cylinder. Make optional, but must be stock for make and model of car.
Stock number of cylinders for make and model of car. Cast iron block only.
A. CUBIC INCH LIMITS:
CHEVROLET: 363 Total cubic inches—stock stroke, not to exceed 3.490.
CHRYSLER: 375 Total cubic inches—stock stroke, not to exceed 3.580.
FORD and all others: 363 Total cubic inches—stock stroke, not to exceed 3.500.
(No sleeved back engines)
B. O.E.M. heads, no porting, polishing, port matching or angle milling. Heads must be factory
drilled straight plug. No GM Vortex, angle plug, Bowtie, Dart or aluminum heads permitted.
C. O.E.M. crankshaft and connecting rods only. Stock stroke only +- .008 inches. No aftermarket
racing parts allowed. Engine must maintain stock bore and stroke combination. Flat top pistons
only.
D. No racing, roller or overhead cams or gear drivers allowed. O.E.M. parts only for camshaft and
valve train.
E. One (1) two barrel, or one (1) four barrel carburetor may be used. No dual line double pumpers.
No Holley carburetors are permitted. GM must use Rochester! Ford must use Motorcraft or Autolite!
Chrysler must use Carter! No adapter plates, spacers or heat shields allowed. No spacers between
air cleaner and carburetor. Only one gasket, not to exceed 1/4" thickness may be installed
between intake manifold and the carburetor. No modification (cutting, polishing, grinding or machining)
can be made to the carburetor. No milled throttle shafts. The choke hardware may be removed.
Rejetting is permitted. Fuel, nitrous oxide, or water injection is not permitted. Turbo charging
or super charging is not permitted.
F. No aluminum intake manifolds. Stock cast iron only, with no modifications allowed. Headers
are allowed. Fuel will be pump gasoline only, no additives.
G. Battery type ignition in stock location only. No magnetos, dual point, msd type boxes, or any
other aftermarket electronic ignitions allowed.
H. Roller rocker arms are allowed. No stud girdles allowed.
I. Engine must be in stock location. No cutting or extension of firewalls to accommodate engine are
permitted. No exposed air cleaners. The hood must be stock with no holes for the air cleaner or
hood scoops.

------------------
Ed


racer17j
Member
posted August 26, 2003 10:59 PM
well it's a given your best choice would be a 350 with the 360 cid limit but it looks like other than that it's wide open as long as it's production stuff heads wise go with some double humps with roller rockers and some hi compression piston is going to be your best bet to make good power under these rules


ctfarm
Member
posted August 27, 2003 07:46 AM
I also would go with the 350,zero decked,492 heads,two valve relief flattops and the old Duntov 30/30 cam.Get a good carb from a reputable carb shop.Also it would'nt hurt to get it balanced.



gerald berry jr
Member
posted August 27, 2003 08:30 AM
if you can afford it the ford is the way to go but parts are hard to find and expensive the new chrysler factory engines are great low cost run good right out of the box but i don't think i'd want to race a chrysler body


outlawstock17
Member
posted August 27, 2003 01:47 PM
sounds like a good set of rules for a 6.58" rodded 351w ford......


iowaracer6993
Member
posted August 27, 2003 03:10 PM
quote:
Originally posted by FastEddy:
Here are the rules for engines at the track I plan on racing at. What are your suggestions for an engine? Street Stock class. Thanks in advance for your pointers!

7. ENGINE:
Any automotive engine originally produced by an American automobile manufacturer for passenger
car use. Not to exceed 8 cylinder. Make optional, but must be stock for make and model of car.
Stock number of cylinders for make and model of car. Cast iron block only.
A. CUBIC INCH LIMITS:
CHEVROLET: 363 Total cubic inches—stock stroke, not to exceed 3.490.
CHRYSLER: 375 Total cubic inches—stock stroke, not to exceed 3.580.
FORD and all others: 363 Total cubic inches—stock stroke, not to exceed 3.500.
(No sleeved back engines)
B. O.E.M. heads, no porting, polishing, port matching or angle milling. Heads must be factory
drilled straight plug. No GM Vortex, angle plug, Bowtie, Dart or aluminum heads permitted.
C. O.E.M. crankshaft and connecting rods only. Stock stroke only +- .008 inches. No aftermarket
racing parts allowed. Engine must maintain stock bore and stroke combination. Flat top pistons
only.
D. No racing, roller or overhead cams or gear drivers allowed. O.E.M. parts only for camshaft and
valve train.
E. One (1) two barrel, or one (1) four barrel carburetor may be used. No dual line double pumpers.
No Holley carburetors are permitted. GM must use Rochester! Ford must use Motorcraft or Autolite!
Chrysler must use Carter! No adapter plates, spacers or heat shields allowed. No spacers between
air cleaner and carburetor. Only one gasket, not to exceed 1/4" thickness may be installed
between intake manifold and the carburetor. No modification (cutting, polishing, grinding or machining)
can be made to the carburetor. No milled throttle shafts. The choke hardware may be removed.
Rejetting is permitted. Fuel, nitrous oxide, or water injection is not permitted. Turbo charging
or super charging is not permitted.
F. No aluminum intake manifolds. Stock cast iron only, with no modifications allowed. Headers
are allowed. Fuel will be pump gasoline only, no additives.
G. Battery type ignition in stock location only. No magnetos, dual point, msd type boxes, or any
other aftermarket electronic ignitions allowed.
H. Roller rocker arms are allowed. No stud girdles allowed.
I. Engine must be in stock location. No cutting or extension of firewalls to accommodate engine are
permitted. No exposed air cleaners. The hood must be stock with no holes for the air cleaner or
hood scoops.

if i was u i would go mopar u get your horse power and torqure u dont have do that much to it


------------------
man that got ideas for any racer that are in the gray area of rules


rico 08
Member
posted August 27, 2003 06:05 PM
360 chevy,pink rods,double hump heads,bowtie intake,vacuum rule cam(sounds stock)reworked quadrajet.


amonett3rdgen
Member
posted August 31, 2003 01:33 PM
we have similar rules and we ran a 358 and a jet q-jet carb never a problem


Eljojo
Member
posted August 31, 2003 07:32 PM
That's a racetrack's idea of how to savea racer money-----it never works! There are so many loopholes in the rules you can spend a war pension at the machine shop!
Start with a set of 492's and have the bowls blended and hathem cut to about 50 cc chambers. Then match your bowtie intake to the block and heads (not port match)
A set of 2.02 ferrea valvea with a multi-angle valve job with good springs...get you cam grinder to work on a low lift wide duration cam. Deck the block till the piston gets to the top and have the lifters aligned and the bores honed. Have the block bored and race honed and prepare yourself with some light weight full floating pistons. Gapless rings.
I've got a KP Q-jet I'd sell ya--Our rules changed Say $100?
Sit down before you call Crower about the "stock" crank! Cut no corners on the rods or bolts and put out the $$ for a good balance job. Use your best judgement on the cost vs the desire to win.


smallrock98
Member
posted August 31, 2003 09:55 PM
Chevy 363 max, huh? Well than, sounds like building a 383 stroker would be your best bet. I mean, really, how the **** they gonna know? Unless of course you have problems keeping a secret.


mnm
Member
posted September 02, 2003 08:04 PM
mopar 360 with X heads.2.06/1.63 valves in a duster. sounds crazy but ...build it right and watch tgem cry!!!


Raz_900
Member
posted September 03, 2003 02:02 PM
quote:
Originally posted by smallrock98:
Chevy 363 max, huh? Well than, sounds like building a 383 stroker would be your best bet. I mean, really, how the **** they gonna know? Unless of course you have problems keeping a secret.


Unless you spend big $$$ on internal balancing the thing, the weight in the back of the balancer will give it away in about 3 1/2 seconds.

350 .030" over (why run .060" and not be able to use the block again? Ya think 5 HP is gonna make that huge a difference?)
041, 461, 462, 492 heads w 2.02/1.6 valves screw in studs and good springs.
Cam in the 240@.050" duration zone lift above .520" is a waste on stock heads. Stay around .500" lift with 1.6 rockers on intake and 1.5 on exhaust
Lightweight pistons and rods (they'll never check the rods). Eagle 6" SIR's and Keith Black KB260 pistons work great. 6" balancer and 153 tooth flywheel/flexplate.
Cutting rotating weight will make a tremendous difference.



FastEddy
Member
posted September 03, 2003 03:20 PM
Thank You all. This is what I think I will do:
350 bored .030= 355 and decked
492 heads w/ 2.02 int 1.60 exh: 64 cc might have it milled a little to 58 cc. Even thought about under cover porting. Havent really decided. I do want to remain legal so the undercover porting is probably out.
good set of springs, not sure which yet.
crane cam: .488 lift cant remember duration off the top of my head: mechanical with roller rocker arms.
Since I have to run a cast iron intake I decided to go with the GM perfomance high rise intake for marine apps.
Not really decided on pistons or rods yet. Depends on possible mill work on heads. We have to run pump gas so I know that I dont wnat to go over 11:1. That might be a little high inorder to avoid detonation.
I will go with balancing crank, rods, pistons, and flywheel as a unit.
Still more to think about but most of all I will have fun with this. I will use arp studs and bolts for sure on the lower end and the heads. After I put it together, I will let you know what I went with.

Thanks for all the input!!


racer17j
Member
posted September 03, 2003 05:26 PM
i think the crane cam your thinking or is a 100072 we have been running that cam for years with 1.6 rockers it's a 480lift and284 dur with 1.5 so i actully comes out with around 512 lift. for your pistons look on ebay can find some good deals on hyperutectrics on there


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