Jeg's Cylinder Heads [Archive] - Chevelle Tech

: Jeg's Cylinder Heads


Silver69Camaro
Oct 9th, 04, 8:38 PM
Has anybody used or know of Jeg's aluminum cylinder heads? For the SBC 197cc heads, they seem to flow as well as the AFR 195's, and a little better on the exhaust side at the same lift.

I asked Jeg's and they said they manufacture them, nobody else. For $594.99 per head, they're a deal. CNC chambers and bowls.

Any experience with these?

bigjimzlll
Oct 9th, 04, 8:46 PM
Canfield used to make them

Silver69Camaro
Oct 9th, 04, 11:44 PM
So they're basically just Canfield's heads? Are they any good?

hoffbug
Oct 10th, 04, 10:11 AM
Canfields were nice heads.. maybe a notch above Edelbrock, and a notch below AFR in quality.

N2097ss
Oct 10th, 04, 11:35 AM
I've used the afr's on a number of engines and from my perspective, the quality is very high.The 195's cost about $1250. I'm sure Jeg's product is good also, but I've never used them.

godsend
Oct 10th, 04, 12:10 PM
They look like canfields.

Canfields are not very pricey. Look @ www.competitionproducts.com (http://www.competitionproducts.com)

Im using there 310cc with 11/32 valves. Cost me 1720 with roller springs and better valves.

Darracq
Oct 10th, 04, 2:52 PM
Buy the AFR 195 for about the same price.

KS64SS
Oct 10th, 04, 4:18 PM
Hey Matt, I run the Jegs SBC 197/64 chambered heads they are actually 65 chambers very nice head with ferrea valves, dual springs. I called Canfield and talked to a tech there and he said that they do indeed make the SBC heads for jegs. I'm planning on running around 500+ HP with these next spring on a new 355 project, can you say bye-bye streetability?. They do flow the same as AFR 195 on the intake side and outflow them on the exhaust side upto .600 lift, they are a D-port exhaust. They flow very strong in the mid range, .400. Hope this helps.

Silver69Camaro
Oct 10th, 04, 5:53 PM
Originally posted by Darracq:
Buy the AFR 195 for about the same price. Why do you say that? With the better exhaust flow and better hardware on the Canfields, they seem to be a better deal than the AFRs.

The only thing that bothers me is the Canfields don't have a modern, "fast burn" type chamber. What kind of chambers does AFR 195's have? I'm running about 8.3:1 DCR on pump gas, so I need to pay attention to the details...

MarkM
Oct 11th, 04, 8:51 AM
Where can one find flow number to the Jegs head?

Silver69Camaro
Oct 11th, 04, 10:46 AM
On the Jeg's site. Also, the numbers are the exact same on Canfields website too.

mike1985
Oct 11th, 04, 11:03 AM
I bought the canfields from competition products and i'm very happy. AFR's STREET head flows slightly less on the intake and a touch more on the EX.

I decided not to wait 8-10 weeks for AFR and spend $300 more. I paid $1055 for mine, springs good up to 650 lift hyd or solid.

ToyzRMe
Oct 11th, 04, 12:07 PM
If you go with the Canfields (I have the BB 310cc heads-very nice), be sure to pay the little extra and order the CNC chamber option.
Definitely a worthwhile option.
Whoever's head you choose, opt for the CNC chambers, if offered.

Randy

ToyzRMe
Oct 11th, 04, 12:07 PM
If you go with the Canfields (I have the BB 310cc heads-very nice), be sure to pay the little extra and order the CNC chamber option.
Definitely a worthwhile option.
Whoever's head you choose, opt for the CNC chambers, if offered.

BTW, the Jeg's heads ARE made by Canfield.

Randy

70_FathomBlueMalibu
Oct 12th, 04, 1:25 AM
I bought Canfields from ProPower in Florida back in 1998. Absolutely gorgeous heads. At that time, Jeg's was actually selling the Canfields. It was shortly after that, when Jeg's pulled them from the catalog and the "Jeg's Heads" popped up with IDENTICAL specs.

Anyway, 195cc runners/65cc chambers were how they were advertised to me. 2.055/1.600 Ferrea valves and I did opt to get the CNC'ed combustion chambers. At that time they were $1135 fully assembled to my door. All I needed were pushrods and rocker arms.

They came with the ARP rocker studs and guideplates.

I've erred on the side of streetability and have managed to be at the cusp of 12's on a full tread D.O.T. tire and a Performer intake. With a slick, more aggressive timing curve and some of the other things I've done since my last actual pass at the strip (including a Performer RPM Air-Gap), I feel it should be a fairly easy mid-12 second ride.

I think the heads could handle more than that. Good choice IMHO.