lt1 cam
#4
The L31 cam specs are 192/197 duration at 0.050" of lift and .414"/.429" of lift on a 111 LSA
The 95-97 LT1 cam has 201/208 duration at 0.050" of lift and .447/.459" of lift on a 111 LSA.
1996 LT4 stock cam 203/210 duration at 0.050" lift and .476/.480" of lift with 1.6:1 rockers on a 115.
The LT4 makes peak power at 5800 rpm(330 hp) ya right, more like 360-370, the LT4 has a fuel shut off of 6412 rpm stock.
Just make sure the pin on the LT1 cam sticks out the same distance the L31 cam does.
it will drop right in.
I plan to put a hotcam in my L31 218/228 duration at 0.050 and 0.525"/0.525" lift with 1.6 rockers.
How does your friends car work??? How is the idle??
peace
Hog
The 95-97 LT1 cam has 201/208 duration at 0.050" of lift and .447/.459" of lift on a 111 LSA.
1996 LT4 stock cam 203/210 duration at 0.050" lift and .476/.480" of lift with 1.6:1 rockers on a 115.
The LT4 makes peak power at 5800 rpm(330 hp) ya right, more like 360-370, the LT4 has a fuel shut off of 6412 rpm stock.
Just make sure the pin on the LT1 cam sticks out the same distance the L31 cam does.
it will drop right in.
I plan to put a hotcam in my L31 218/228 duration at 0.050 and 0.525"/0.525" lift with 1.6 rockers.
How does your friends car work??? How is the idle??
peace
Hog
#6
Man the Lt1 car sounds GREAT. It lopes really hard for what Ive heard about it. Most guys on LS1tech said it is a waste, but when we dug into the motor, we found out that it had 1.6 RR's. This motor was "bone stock." I think the RR's help it alot. Oh by the way will I see any power differences? Also will it sound like it did in the LT1 car?
#7
Thats weird, I thought the only engines that got the RR's were the LT4 engines.
i would suggest that you dont use the stock L31 springs, they are crap. You can runthem, but if they have any miles on them, I would replace them.
I am going to try a set of CompCams 918 springs with teh Hotcam in my L31. The 918's are beehive springs with retainers that use a 1.8" installed height that will allow for 0.550" of lift on stock L31 heads with ZERO machining. the smaller retainers are quite a bit lighter thanteh full diameter L31 retainers also.
peace
Hog
i would suggest that you dont use the stock L31 springs, they are crap. You can runthem, but if they have any miles on them, I would replace them.
I am going to try a set of CompCams 918 springs with teh Hotcam in my L31. The 918's are beehive springs with retainers that use a 1.8" installed height that will allow for 0.550" of lift on stock L31 heads with ZERO machining. the smaller retainers are quite a bit lighter thanteh full diameter L31 retainers also.
peace
Hog
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lawhitediamante
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