304 flat spot, changed ignition and injectors now what?

[tim_pato]

What's your definition of head work? It's got lt1 springs and had a minor port job the manifold to TB has been opened up, 70mm throttle body mace style cai pod enclosure. Or do you mean ground for compression? How much more compression would be achieved with cometic 27thou head gaskets?

 

[ari666]

any guesses at comp without knowing how far off zero deck you are is just that: guesses.

have you taken that lifter off yet??? you seem to be dead set on mechanical failure, based on a noisy anti-pump lifter noise and some glitter. its not all that difficult to whip off the intake and check your lifter bases.

 

[tim_pato]

Then guess away some of you guys have a lot of experience dealing with these motors, did they vary that much from factory?

No point pulling the manifold off and going darn, need new cam and lifters. Do I replace the manifold gasket now and then replace it again in 3 weeks when I can afford a new cam set, or be stuck without a car?I asked about the 286 because there was a bloke selling a 286 cam package at a decent price that only had 2000klms on them before he swapped it for a roller setup,

 

[mr j-man]

any guesses at comp without knowing how far off zero deck you are is just that: guesses.

have you taken that lifter off yet??? you seem to be dead set on mechanical failure, based on a noisy anti-pump lifter noise and some glitter. its not all that difficult to whip off the intake and check your lifter bases.

did this on the wkend to a mates 308 with 288 sft....thought he had a fkd lobe.
It took 3 guys, 2 swinging spanners and 1 getting beers all up an hour... to remove manifold, rocker cover, rockers and rods...all lifters checked out ok.

 

[tim_pato]

No point pulling it off until I can afford to replace the parts if they are the cause.

 

[mr j-man]

Then guess away some of you guys have a lot of experience dealing with these motors, did they vary that much from factory?

No point pulling the manifold off and going darn, need new cam and lifters. Do I replace the manifold gasket now and then replace it again in 3 weeks when I can afford a new cam set, or be stuck without a car?
I asked about the 286 because there was a bloke selling a 286 cam package at a decent price that only had 2000klms on them before he swapped it for a roller setup,

one word of advice!!....never buy 2nd hand cams and lifters unless you personally know the engine and remove it yourself or someone u trust

 

[mr j-man]

Then guess away some of you guys have a lot of experience dealing with these motors, did they vary that much from factory?

No point pulling the manifold off and going darn, need new cam and lifters. Do I replace the manifold gasket now and then replace it again in 3 weeks when I can afford a new cam set, or be stuck without a car?
I asked about the 286 because there was a bloke selling a 286 cam package at a decent price that only had 2000klms on them before he swapped it for a roller setup,

search google for a CR calculator

 

[383 hatch]

Buying second hand cam and lifters is just asking for trouble. It's any wonder why so many people have so much trouble with stuff when they're always skimping on parts that are vital to an engines operation.

Don't get me wrong, I love a good deal as much as the next bloke, but some things just should never be bought second hand/on the cheap. Cam and lifters fall right into that category.

 

[ari666]

that only had 2000klms on them before he swapped it for a roller setup,

HAHAHAHAH youre a sucker for punishment

 

[delcowizzid]

2nd hand is very hit or miss .if the cam sat further in the block compared to where it sits in your block in relation to the lifter bores it isnt gonna last long.$475 gets me new cam and lifters why bother with used.add some welsh plugs to replace the ones in the oil galleries and at the back of the cam as all the grit will get trapped in the oil galleries behind the bungs and plugs to start coming out any time it sees fit.full tear down and clean that grit gets everywhere