1.6 ratio rocker arms - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BCOWANWHEELS · 09-03-2019, 09:09 PM

Any of you guys run the 1.6 ratio rockers.

**Ironangel** · 09-04-2019, 09:09 AM

Not on factory heads...Read this, http://nastyz28.com/threads/1-6-rock...-engine.95912/

BCOWANWHEELS · 09-04-2019, 11:59 AM

They fit and work perfect............ You have /should enlarge the pushrod holes in the heads though and run guide plates which i have done the mods to go along with my lt1 cam. My only concern is will they fit under stock steel valve covers without spacers. I want stock appearence as possible.

**special-K** · 09-04-2019, 11:44 PM

I haven't run my 327 with them, but my machinist chose the parts and put my LT1 aluminum valve covers on. He wouldn't have if there would be clearance issues.

BCOWANWHEELS · 09-05-2019, 01:47 AM

Lt1 alum covers most likely are taller than stamped steel. I,ll know 4 sure in a day or 2 and post it

**special-K** · 09-06-2019, 07:06 AM

They don't look tall to me. I can measure. I think tall valve covers are an aftermarket think

rcazwillis · 09-06-2019, 10:00 AM

Quote:

Originally Posted by BCOWANWHEELS

Any of you guys run the 1.6 ratio rockers.

Yes, I have used them on multiple SBC engines without guides. Will they work on your engine? What are the details? Cam specs, valve springs, ect. They should work, but details will determine the correct answer.

rcazwillis · 09-06-2019, 10:02 AM

Quote:

Originally Posted by BCOWANWHEELS

They fit and work perfect............ You have /should enlarge the pushrod holes in the heads though and run guide plates which i have done the mods to go along with my lt1 cam. My only concern is will they fit under stock steel valve covers without spacers. I want stock appearence as possible.

I have used 1.6 rockers under stock valve covers. Never used an lt1 cam, but have used comp cams.

BCOWANWHEELS · 10-23-2019, 11:49 PM

Fyi , roller tip 1.6 rockers work under stock valve covers

09-03-2019, 09:09 PM	#1
BCOWANWHEELS Registered User Join Date: Nov 2006 Location: KINGSPORT,TN. Posts: 3,035	1.6 ratio rocker arms Any of you guys run the 1.6 ratio rockers. __________________ I BELIEVE IN JOHN 3:16

09-04-2019, 09:09 AM	#2
Ironangel Senior Member Join Date: Feb 2010 Location: Falls City, Nebraska "100 Miles From Nowhere" Posts: 2,219	Re: 1.6 ratio rocker arms Not on factory heads...Read this, http://nastyz28.com/threads/1-6-rock...-engine.95912/ __________________ Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property" "Be American, Buy American"

09-04-2019, 11:59 AM	#3
BCOWANWHEELS Registered User Join Date: Nov 2006 Location: KINGSPORT,TN. Posts: 3,035	Re: 1.6 ratio rocker arms They fit and work perfect............ You have /should enlarge the pushrod holes in the heads though and run guide plates which i have done the mods to go along with my lt1 cam. My only concern is will they fit under stock steel valve covers without spacers. I want stock appearence as possible. __________________ I BELIEVE IN JOHN 3:16

09-04-2019, 11:44 PM	#4
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: 1.6 ratio rocker arms I haven't run my 327 with them, but my machinist chose the parts and put my LT1 aluminum valve covers on. He wouldn't have if there would be clearance issues. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

09-05-2019, 01:47 AM	#5
BCOWANWHEELS Registered User Join Date: Nov 2006 Location: KINGSPORT,TN. Posts: 3,035	Re: 1.6 ratio rocker arms Lt1 alum covers most likely are taller than stamped steel. I,ll know 4 sure in a day or 2 and post it __________________ I BELIEVE IN JOHN 3:16 Last edited by BCOWANWHEELS; 10-23-2019 at 11:50 PM.

09-06-2019, 07:06 AM	#6
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: 1.6 ratio rocker arms They don't look tall to me. I can measure. I think tall valve covers are an aftermarket think __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

10-23-2019, 11:49 PM	#9
BCOWANWHEELS Registered User Join Date: Nov 2006 Location: KINGSPORT,TN. Posts: 3,035	Re: 1.6 ratio rocker arms Fyi , roller tip 1.6 rockers work under stock valve covers __________________ I BELIEVE IN JOHN 3:16



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.