1.6 rockers?

[scottericsonon]

hi everybody

im building a motor for my blazer and i was looking at roller rockers <harland sharps>

i was wondering if anyones had any experiences with rollers to share?

good?bad?ugly?

 

also are guide plates nessacery when running 1.6 rockers?

ill be running a comp extreme energy cam /231-2

 

206i/[email protected]    3432/.453lift

motor will RARELY turn more than 5grand with most friving in the 2500-4000RPM range

thanx scott

[SoMnDMAX]

Harlan Sharps are good, affordable roller rockers. I've used them in BBC's, SBC's and SBF's before with zero problems.

 

Guide plates are not absolutely necessary when running 1.6 rockers, but you'll have to properly modify the cylinder heads so the pushrods do not bind. Comp Cams makes a tool part # 4710 that will allow you to lengthen the pushrod slot in the head.

[scottericsonon]

that "louis"tool?

i looked at that in my jegs cat

summit doesnt have it in stock

thanx for the tip

[SoMnDMAX]

that "louis"tool?

That's the one.

[scottericsonon]

cool thanx

 

this sound like a decent combo for a full size blazer?

400 small-block

ported stock heads

preiviously mentioned cam and rockers

holley dual-plane

750 holley vac 2ndary

turbo 350 stock gears and 33"

[SoMnDMAX]

Should work good!! It'll be a very torquey engine!!!!

[MarkD]

Guide plates also align the pushrod side to side.  If the rocker arms are not self-aligning, you will need guide plates.

[scottericsonon]

exellent

thats exacly what i was looking for

ill post build pics when i get to it

sometime in the next week or two

[SoMnDMAX]

Guide plates also align the pushrod side to side.  If the rocker arms are not self-aligning, you will need guide plates.

Mark, that's not the case here. The side to side alignment is done by a slot machined into the cylinder head.

 

Self aligning rockers are only necessary on '93 and newer LT1, LT4, and Vortec OEM heads.

[scottericsonon]

im NOT running vortecs or any newer style head..........

just stock 70s smog heads

ill let everybody know 100% for sure on this as i sent an email to comp cams

as soon as i hear back from them ill post it

later scott

[scottericsonon]

i heard back from comp cams

if u use the louis tool to elongenate the push rod slots in the head

u DO NOT have to use guide plates or anything else on older style heads

 

just bolt on the regular 1.6s check ur PtoV clearence

and go smoke the tires

 

later scott

[SoMnDMAX]

just bolt on the regular 1.6s check ur PtoV clearence

and go smoke the tires

While you're checking piston to valve clearance, check for spring bind, and also check for retainer to valve guide clearance.

[scottericsonon]

i knew that but thanx

if i know me ill probably double check everything about a thousand times when this thing is going together

 

what kind of specs am i looking for on retainer to valve guide clearance????

 

im planning on running the springs that comp recommended for my cam

 

yes they do know im planning on usings 1.6 rockers

 

 

later scott