Anyone running the victor jr heads ? - Page 2

oldman · 05-26-2018, 09:21 PM

What I like about Pray's ported stock, there is still turbulence induced via the port which should help with combustion, MPG, part throttle tip in and a strong midrange, especially under: cam with close lobe centers, or for FI.

I still like the Edelbrock setup for the strip, large straight ports; but for street, both for close lobe center NA and FI, it would be hard to be Pray's ported setup..

For a prepped Jr head, I would think you would be looking at a mid 23X grind on 110 centers or tighter.

PRAY · 05-27-2018, 07:13 AM

I hate GM's exhaust port on this head as well. My LS2/3/7 exhaust ports flow about 20cfm more. But the intake port is no joke. Especially for how small the valve is. I focus on all the stuff around the flow numbers to make a very efficient and effective head. My H/C cars get stock fuel mileage if that tells you anything. And I mainly use 111 lobe seps.

I am sure a well prepped E head will out do a stock ported head at some point for some combo's. But at what cost? Now if the head is a 280cc runner or something like that with those numbers I will be impressed for sure.

I am dying to pop a 2.200" valve in a stock head but I can't find one that fits yet. I would bet dollars to doughnuts I would crack 400cfm with that valve in a stock head. Shoot, a 2.165" valve will fit on the stock seat but I can't seem to find one to fit either yet.

I guess for me things boil down to dollars and cents. The dollars need to make sense.

CesarT · 05-27-2018, 12:11 PM

2.200 valve in a stock bore wont benefit anything on a stock casting regardless of what it flows. Its been done before. Now on a bigger bore itll help. Still waiting on tsp or these vic jr heads..hopefully they shifted things over

PRAY · 05-27-2018, 12:18 PM

Quote:

Originally Posted by CesarT

2.200 valve in a stock bore wont benefit anything on a stock casting regardless of what it flows. Its been done before. Now on a bigger bore itll help. Still waiting on tsp or these vic jr heads..hopefully they shifted things over

I would have to try it for myself and see.

Are you saying a 2.200" valve won't work in the stock bore with any head or just the stocker.

After Camaro Fest I won't be on a stock bore any more.

CesarT · 05-27-2018, 05:30 PM

just a stocker. It will fit in a stock bore but theres no benefit with the valve being so shrouded up..bigger bore would definately help.

I dont think cid altered their valve locations either but i could be wrong.

05-26-2018, 09:21 PM	#15
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,325	What I like about Pray's ported stock, there is still turbulence induced via the port which should help with combustion, MPG, part throttle tip in and a strong midrange, especially under: cam with close lobe centers, or for FI. I still like the Edelbrock setup for the strip, large straight ports; but for street, both for close lobe center NA and FI, it would be hard to be Pray's ported setup.. For a prepped Jr head, I would think you would be looking at a mid 23X grind on 110 centers or tighter. __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires. Last edited by oldman; 05-27-2018 at 10:55 AM.

05-27-2018, 07:13 AM	#16
PRAY Drives: 2016 2SS Join Date: Jul 2016 Location: Sanford NC Posts: 2,766	I hate GM's exhaust port on this head as well. My LS2/3/7 exhaust ports flow about 20cfm more. But the intake port is no joke. Especially for how small the valve is. I focus on all the stuff around the flow numbers to make a very efficient and effective head. My H/C cars get stock fuel mileage if that tells you anything. And I mainly use 111 lobe seps. I am sure a well prepped E head will out do a stock ported head at some point for some combo's. But at what cost? Now if the head is a 280cc runner or something like that with those numbers I will be impressed for sure. I am dying to pop a 2.200" valve in a stock head but I can't find one that fits yet. I would bet dollars to doughnuts I would crack 400cfm with that valve in a stock head. Shoot, a 2.165" valve will fit on the stock seat but I can't seem to find one to fit either yet. I guess for me things boil down to dollars and cents. The dollars need to make sense. __________________ 2016 2SS. H/C SBE 1.37 60ft, 6.36@109.49, 9.97@136+. Nuff Said.

05-27-2018, 12:11 PM	#17
CesarT Drives: '17 1ss Join Date: Jun 2017 Location: Borger Posts: 93	2.200 valve in a stock bore wont benefit anything on a stock casting regardless of what it flows. Its been done before. Now on a bigger bore itll help. Still waiting on tsp or these vic jr heads..hopefully they shifted things over

05-27-2018, 05:30 PM	#19
CesarT Drives: '17 1ss Join Date: Jun 2017 Location: Borger Posts: 93	just a stocker. It will fit in a stock bore but theres no benefit with the valve being so shrouded up..bigger bore would definately help. I dont think cid altered their valve locations either but i could be wrong.

User Name		Remember Me?
Password