McLare built 502 657-HP
11-21-2001, 03:06 PM
#1
Instructor
Thread Starter
Member Since: Nov 2000
Location: Overlandpark Kansas
Posts: 220
Likes: 0
Received 0 Likes
on
0 Posts
McLare built 502 657-HP
I have the Build sheets for this engine from the McLaren engine builder it will be featured in an upcoming Super Chevy. It was to show the potential of GM ZZ502 the 657hp is without porting and with stock valve lift per IHRA stock rules. The main difference I see is cam duration int dur 297@.006 lift .530 ex dur 306@.006 lift .542 comparerd to zz502 cam int dur 224 @.050 lift .527 Ex 234@.050 lift .544. So what do you engine guys think this extra duration would do for the street. This engine was done for GM for use in IHRA GM performance parts top stock drag race competition
John
John
11-21-2001, 04:14 PM
#2
Le Mans Master
Re: McLare built 502 657-HP (je68)
What are the specs (duration) of the McLaren cam at .050" lift?
Looks like total lift is about even but you can't compare duration of one cam at .006" to another at .050" . Apples and oranges.
BTW: What RPM for the 657 HP and what about torque numbers? That will give you a better idea of the streetability.
Looks like total lift is about even but you can't compare duration of one cam at .006" to another at .050" . Apples and oranges.
BTW: What RPM for the 657 HP and what about torque numbers? That will give you a better idea of the streetability.