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C6 Corvette ZR1 & Z06General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track
Well I decided my H/C/I LS7 625rwhp wasn’t enough N/A power for a daily driver. Lol!! So now I have Erik at HPR building me a 468 LS7 N/A monster. Here are the specs I have so far.
GM LS7 block with Darton sleeves
K1 4.250 stroke crank cut down to except small journal bearing rods
Callies small journal bearing rods
HPR custom 4.185 dome pistons by CP
HPR custom hydraulic cam 26*/27*....74*/74*...112 lsa
Brodix BR7 BS heads done by WCCH with Ti intake valves and inconel exhaust valves
G1Pro custom billet with long runners (7inch runners with 10% taper full radius bell mouth)
PAC springs
Crower 1.8 shaft mount rockers with needle bearing tip
Katech “red” ported oil pump
C5R timing chain.
compression will be around 13.0 since I will be running E85.
ARH 2inch headers with off road 3inch xpipe. Can’t decide wether to keep my Corsa exhaust or dump it
Goal is 700+rwhp
For the timing chain, I'd stick with the Katech C5R chain. There is no evidence that the Hinson "C7R" chain is superior in any way. Further, Katech never once broke a C5R chain when they built motors for the factory Corvette racing team, and that included the 24 hours at LeMans endurance races. It's a race derived, race tested and proven chain.
For the timing chain, I'd stick with the Katech C5R chain. There is no evidence that the Hinson "C7R" chain is superior in any way. Further, Katech never once broke a C5R chain when they built motors for the factory Corvette racing team, and that included the 24 hours at LeMans endurance races. It's a race derived, race tested and proven chain.
Not questioning you, as the Katech C5R chain has been proven.
But have there been any reports of the Hinson C7R chain broken? I haven’t seen any, but if there are it would be nice to know before I go in on the C7R chain as well lol.
There should have been a C6R chain to rule them all...
Not questioning you, as the Katech C5R chain has been proven.
But have there been any reports of the Hinson C7R chain broken? I haven’t seen any, but if there are it would be nice to know before I go in on the C7R chain as well lol.
There should have been a C6R chain to rule them all...
Not that I know of, and the Hinson chain is likely made by the same manufacturer (IWIS)..
However, the Katech C5R chain is also the same chain as was on the C6R and currently on the C7R. It's just called a C5R chain. It's made to Katech's specifications and has never failed in endurance race conditions from C5R to C7R. Same chain all along and same chain you can buy.
09-25-2018, 02:38 PM
HPR 468 LS7, WCCH Brodix BR7 heads, and G1Pro custom billet intake build
