Stock compression in blaster

[vrb115]

62T motor what is stock compression. Got 150 in the front and 154 back. But the kicker is there is a west coast blue head on there and I don't know what size it is. Thanks in advanced

 

[Mile9c1]

The size might be stamped into the top of the domes (around the spark plug hole).

 

[vrb115]

Mile stamp says WPP YEP 7028 on head correct me if i 'am wrong but does that mean it is a 28 cc dome? If so what should compression be? thanks

 

[QuickMick]

if it is a 28 cc dome. I would think your compression is about 200 and needing some race fuel.

 

[WaveDemon]

stock compression is 150.

 

[orangefinger]

The westcoast head uses Stock OEM headgasket + 7cc !!! Unless you have a different head gasket on there

28cc + 7cc = 35 CC !!

 

[vrb115]

yeah been running pump gas since i bought it with no problems decided to do compression test and yielded those results 150, 154 like i said runs on pump gas no problem. i think the head #s are not what they say cause it would not run on pump gas correct?

 

[orangefinger]

35cc +- 185 PSI Sea level 91 Octane

If you have 150 PSI you can easily run pump gas its oem PSI

It might be more your comprssion tester is not what is should be most common problem

What is your elevation ?

 

[vrb115]

its at sea level and a no name compression tester