Stroker LT1
03-11-2010, 01:54 PM
#1
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Stroker LT1 I will be helping a buddy install either a 383 or 396 stroker in his 96Z, looking for recomnedations on good headers and oil pan to use. looking for headers that are not going to require modification to fit or that are known for cracking, hitting anything, etc and no emission stuff. On the pan mostly wanting to know what will fit. Dont care if it has the oil level indicator
03-11-2010, 02:55 PM
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Looking at the LPP headers, as this seems to be what people seem very happy with for fit and performance. Jaycenk you believe the stock oil pan will work with a 3.875 stroke crank? Being we are going to build the motor complete and pull the old motor to do swap I may just wait and see, CNC motorsports believes the pan will need to be replaced for clearence.
03-11-2010, 03:27 PM
#5
I have a 383 and it all fit fine. It depends on the parts used. Like with some stroker kits you have to use small base circle cams in order to clear the rod bolts or the rod it's self. Mine all I had to do was clearance the block a little in some spots and I was able to use a standar base circle cam. All in what parts you use as to what you have to modify or replace. I have LPP long tubes and a moroso pan and the thing that I wished I still had the stock pan for is to be able to get the long tubes in and out with out having to jump through hoops. I put my engine in through the top so you would not have this problem if you dropped the K member and just put everything together that way and lift it back into the car. Pasenger side was easy but the driver side took me 4 hours to figure out. With stock pan in there before my build it was easy as pie on both sides.
03-11-2010, 05:11 PM
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Just ordered a 396 shortblock from CNC Motorsports, 11.4cr w/64cc heads, All forged lowerend and using 6" rods clearenced for 4" stroker cranks, will have no problem installing any cam into the motor. Plans currently are to use trick flow 195 heads and right now looking at the Comp Cams 230-236 cam with 1.6 RR, ported intake with 58mm TB along with the LPP hheaders, I will wait till I have the shortblock and try a stock pan for fitment. Car will be more of a daily driver but he does want to run it at drag strip periodically, I think the setup will do very well both on and off the dragstrip, car is a manual with 3.73 gearing. I told him I would do the job in the fall but tried to back out of it this spring due to the amount of work I currently have going on and he wouldnt let me off the hook.
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03-11-2010, 10:19 PM
#11
+1....I thought the same thing about the heads. 195 cc intake ports are going to be kinda small personally.....then again I like the 200+ for just about anything performance wise....I'm kinda bummed no one has gotten up to the 240+ cc range yet for the LTx platform. I'd look at at leat getting them opened up to 200+ to make some good power...JMO though.....
03-12-2010, 05:50 AM
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The object of the head and cam choice is more about drivability not how much HP we can build. The car will only see the track maybe twice a year. Going with a bigger cam will put the power band up higher and possibly loosing drivability manors for daily driving and mostly fuel economy. Basically the same goes for the heads, going to a more raised runner heads will also deter from drivability and fuel economy. This thing will gobs of tourque through the entir range instead of having to downshift. I plugged this cam in to Desktop Dyno when putting my 427sbc and according dd2000 the numbers made better numbers than the 236/240 through the entire range, I ended up going with a Crower 236/240 which was still an animal all the way through the gears and according DD2000 I wasnt that far off on the dyno. He uses the car only during the summer and parks it every winter. He has a wife and 2 kids that he totes around with him everywhere and is more interested in drivability than trying to get as much HP as possible, basically he wants this car to be like stock but wants more power. Cam at this point isnt set in stone yet as DCR is just under 9.1
03-12-2010, 12:29 PM
#13
Even with more cam and heads, you will still have tons of tq, just adding some revs. Instead of the 195 consider a 200cc intake port then maybe bump the cam just a bit. It'll raise the rpm range a bit, but not too much. It'll still make for a fun street river and a little bit more fun for the track the little bit it's there. This is just me, though and I plan on going to a 408 with a SR for plenty of street/strip fun 
03-16-2010, 09:56 AM
#18
No not me, im just curious. People are all about the low end 383 torque so im wondering what would be streeetable for that, unless you fgure a 355 will make good low end power as well.
03-16-2010, 03:34 PM
#20
One of the reasons the original SBC was stroked to begin with was the search of more torque. A natural by-product of stroking is torque production. Then HP is figured off or your tq numbers. To get the most HP out of a stroker you need to Rev it....unfortunately strokers don't like RPM due to their usually longer rods. Therefor if a stroker is cammed properly it should make for a great DD seeing that you use mostly TQ for putzing around town. Personally I'd go with a 200-215 cc intake port and then get the cam guru's to get me a grind and try to limit the RPM to 6000-6500. Then not only can I keep the stock computer, but if they do it right you can make 550+ tq and have lots of fun on the street....